They’re not the kind of exams you’re used to in school, but you know you have to prepare hard for them if you want to go to college. Almost every admission procedure requires that you score a certain percentage in one or more competitive exams, so unless you’re good and ready in the most efficient way possible, it’s hard to get your foot in the door that almost every other high school graduate is trying to open. If you’re looking for extra help, here are a few secrets that will help you achieve success:
• Start early: Know what you want to do before you graduate from high school and work on achieving your goal step by step. Be familiar with the requirements you must meet, the subjects you need to study, and the grades you must secure. When you begin early, you gain a head start not just on your peers, but also in your attempt to crack the exam.
• Do your research: Make a list of the colleges you want to attend and the prerequisites for admission to each of them. Don’t rely on secondhand sources for your information; instead, call the admissions office or check the official website of the institutions you’re interested in and get your queries and doubts resolved. Ask if there are any additional qualifications that you could meet in order to secure scholarships or other perks, and ensure that you send in your application well before the due date.
• Do a little everyday: Studying for an exam is a continuous process, one that must be done little by little and on a regular basis. If you try to cram everything a few days or even a few weeks before the big day, your lack of preparation is going to show you up. When it comes to competitive exams, it’s not just your grades that matter, but how well you’ve done in comparison to every other person who has taken the exam as well. And when a whole nation is competing with you, preparation is everything. So besides starting as early as you can, dedicate a few hours every day to preparing for your exam.
• Time yourself: Most competitive exams are all about time; they’re multiple choice options that have to be solved in less than a minute, and you often have just a few seconds to come up with each answer. While it’s easy to stay within the time limit for standard questions in English and other general subjects, it’s a different issue for those that involve solving mathematical or scientific equations and problems. Sometimes you get so caught up in trying to crack one equation that you neglect too many other questions in the process. So conduct as many dry runs as you can and perfect a way to answer as many questions as you can in the limited time available. Many students perform badly not because they don’t know the answers but because they do not complete the tests for lack of time.
• Stay calm and collected: Don’t panic at any stage of the exam, when preparing for it or writing it. If you’ve prepared well, your confidence should help you stay calm and collected, even when you think you’re pressed for time and the pressure starts to build. When you stick to your game plan, it’s easy to do your best.
By-line:
This article is contributed by Susan White, who regularly writes on the subject of rad tech schools. She invites your questions, comments at her email address: susan.white33@gmail.com.
Sunday, 25 July 2010
Sunday, 18 July 2010
Physics questions for IITJEE, AIEEE, PMT preperation
Given below are the questions you can prepare for IITJEE-2011, AIEEE-2011 and PMT-2011 examinations. Few questions from the questions given below have been aske in previous year IITJEE, AIEEE and other such exams.
Question 1. Three capacitors of 8μF , 12μF and 24μF are connected (A) in series combination and then (B) in parallel combination . The ratio of equivalent capacitance in case (B) to that of case (A) is
(a) 11:1
(b) 1:11
(c) 1:1
(d) 3:1
Question 2. A piece of copper and a piece of germanium are cooled from the room temperature down to 80K
(a) resistance of each of them increases
(b) resistance of each of them decreases
(c) resistance of copper increases and that of germanium drcresaes.
(d) resistance of copper decreases and that of germanium increases.
Question 3. A current flows along the length of infinitely -long straight , thin walled pipe then,
(a) magnetic field at all points inside the pipe is same , but non zero
(b) the magnetic field at any point inside the pipe is zero.
(c) magnetic field is zero only on the axis of the pipe
(d) magnetic field is different at different points inside the pipe
Question 4. The line on the earth's surface joining the points where the field is horizontal is called
(a) magnetic maredian
(b) magnetic axis
(c) isogonic line
(d) magnetic equator
Question 5. The principle used in the transmission of signal through an optical fibre is
(a) total internal reflection
(b) reflection
(c) refraction
(d) dispersion
Question 6. Milikan's oil drop experiment established that
(a) electric charge depends on velocity
(b) electron has wave nature
(c) electron has particle nature
(d) electronic charge is quantized
Question 7. For steady direct current to flow in a circuit
(a) circuit must contain a source of emf
(b) charge distribution in circuit must remain unchanged
(c) lines of current density vector are closed one
(d) all of the above
I hope that these question answes will help you prepare physics for IITJEE, AIEEE and PMT exams
Answer:-
1. (a)
2. (d)
3. (b)
4. (d)
5. (a)
6. (d)
7. (d)
Question 1. Three capacitors of 8μF , 12μF and 24μF are connected (A) in series combination and then (B) in parallel combination . The ratio of equivalent capacitance in case (B) to that of case (A) is
(a) 11:1
(b) 1:11
(c) 1:1
(d) 3:1
Question 2. A piece of copper and a piece of germanium are cooled from the room temperature down to 80K
(a) resistance of each of them increases
(b) resistance of each of them decreases
(c) resistance of copper increases and that of germanium drcresaes.
(d) resistance of copper decreases and that of germanium increases.
Question 3. A current flows along the length of infinitely -long straight , thin walled pipe then,
(a) magnetic field at all points inside the pipe is same , but non zero
(b) the magnetic field at any point inside the pipe is zero.
(c) magnetic field is zero only on the axis of the pipe
(d) magnetic field is different at different points inside the pipe
Question 4. The line on the earth's surface joining the points where the field is horizontal is called
(a) magnetic maredian
(b) magnetic axis
(c) isogonic line
(d) magnetic equator
Question 5. The principle used in the transmission of signal through an optical fibre is
(a) total internal reflection
(b) reflection
(c) refraction
(d) dispersion
Question 6. Milikan's oil drop experiment established that
(a) electric charge depends on velocity
(b) electron has wave nature
(c) electron has particle nature
(d) electronic charge is quantized
Question 7. For steady direct current to flow in a circuit
(a) circuit must contain a source of emf
(b) charge distribution in circuit must remain unchanged
(c) lines of current density vector are closed one
(d) all of the above
I hope that these question answes will help you prepare physics for IITJEE, AIEEE and PMT exams
Answer:-
1. (a)
2. (d)
3. (b)
4. (d)
5. (a)
6. (d)
7. (d)
Tuesday, 29 June 2010
How to use this blog
Welcome All
Our blog hosts more than 600 questions with their solutions in Physics and we are continously adding it
We also provide Test series for IITJEE,AIEEE,PMTalong with their there with answers.
All the material and Test series in our site aims to help you lern physics better.
We have been giving articles according to the units in Physics.
We have Index for all units, so if you look at a particular unit,check out our Index column.
This blog we try to give concise and good material to the students to help in their studies and competition
May your endeavour be fruitful and all the best!
Please give us feedback on improving our service.
We will happy receive comments from you
Thanks for Visiting the Blog
Our blog hosts more than 600 questions with their solutions in Physics and we are continously adding it
We also provide Test series for IITJEE,AIEEE,PMTalong with their there with answers.
All the material and Test series in our site aims to help you lern physics better.
We have been giving articles according to the units in Physics.
We have Index for all units, so if you look at a particular unit,check out our Index column.
This blog we try to give concise and good material to the students to help in their studies and competition
May your endeavour be fruitful and all the best!
Please give us feedback on improving our service.
We will happy receive comments from you
Thanks for Visiting the Blog
Atomic nucleus
(A) Introduction
1. Atomic nucleus exists at the center of the atom. Nucleus of an atom consists of entire positive charge of the atom and almost all of its mass.
2. Nuclei is made up of protons and neutrons out of which protons are positively charged particles and neutrons does not posess any charge.
3. Neutrons and protons togather are known as neutrons.
(B) Protons
1. Protons are positively charged particles.
2. Magnitude of charge on a proton is +1.6x10-19 C.
3. Mass of a proton is 1841 times greater then that of an electron.
4. Total number of protons in a atomic nucleus (Z-atomic number) is equal to the number of electrons in the neutral atom.
(c) Neutron
1. Neutron is a chargeless particle.
2. Mass of a neutron is aproximately equal to the mass of a proton.
3. The number of protons plus the number of neutrons in the nucleus is known as mass number of the nucleus.
(D) Definations
1. Nuclide:- A single nuclear species (single value of both Z and N ) is called nuclide and it is represented as ZXA.
2. Isotopes:- Nuclides having same number of protons but different number of neutrons.
3. Isobars:- Nuclides having same number of nucleons but different number of protons.
4. Isotones:- Nuclides having same number of neutrons but different number of protons.
(E) Properties of nucleus
1. The radius of nucleus is of the order of 10-15.
2. Radius of nuclei is represented by the relation
R=R0A1/3
where R0=1.2x10-15 is a constant same for all the nuclei.
3. Volume of the nuclei is proportional to A.
4. Density of nuclei is very high about 1012 times greater then that of lead.
5. Nucleus also posess angular momentum and magnetic moment which arises as a result of continous motion of neutrons and protons inside the atomic nucleus.
Complete notes of various chapters in physics are available at website also visit the website for one year free online learning program in physics OLP. This OLP would prove helpful for those preparing for various competetive exams like IITJEE, AIEEE, PMT, CBSE and also for board examinations.
1. Atomic nucleus exists at the center of the atom. Nucleus of an atom consists of entire positive charge of the atom and almost all of its mass.
2. Nuclei is made up of protons and neutrons out of which protons are positively charged particles and neutrons does not posess any charge.
3. Neutrons and protons togather are known as neutrons.
(B) Protons
1. Protons are positively charged particles.
2. Magnitude of charge on a proton is +1.6x10-19 C.
3. Mass of a proton is 1841 times greater then that of an electron.
4. Total number of protons in a atomic nucleus (Z-atomic number) is equal to the number of electrons in the neutral atom.
(c) Neutron
1. Neutron is a chargeless particle.
2. Mass of a neutron is aproximately equal to the mass of a proton.
3. The number of protons plus the number of neutrons in the nucleus is known as mass number of the nucleus.
(D) Definations
1. Nuclide:- A single nuclear species (single value of both Z and N ) is called nuclide and it is represented as ZXA.
2. Isotopes:- Nuclides having same number of protons but different number of neutrons.
3. Isobars:- Nuclides having same number of nucleons but different number of protons.
4. Isotones:- Nuclides having same number of neutrons but different number of protons.
(E) Properties of nucleus
1. The radius of nucleus is of the order of 10-15.
2. Radius of nuclei is represented by the relation
R=R0A1/3
where R0=1.2x10-15 is a constant same for all the nuclei.
3. Volume of the nuclei is proportional to A.
4. Density of nuclei is very high about 1012 times greater then that of lead.
5. Nucleus also posess angular momentum and magnetic moment which arises as a result of continous motion of neutrons and protons inside the atomic nucleus.
Complete notes of various chapters in physics are available at website also visit the website for one year free online learning program in physics OLP. This OLP would prove helpful for those preparing for various competetive exams like IITJEE, AIEEE, PMT, CBSE and also for board examinations.
Monday, 14 June 2010
Online Learning Program
FREE Online Learning Program
We are notifying you that physicscatalyst.com has launched one year free online learning program in physics. This Online Learning Program is free of cost. This program includes free study material , objective and subjective assignments along with their answers and solutions. You just and creat a user id to ascess the material. For further information visit Online Learning Program
We are notifying you that physicscatalyst.com has launched one year free online learning program in physics. This Online Learning Program is free of cost. This program includes free study material , objective and subjective assignments along with their answers and solutions. You just and creat a user id to ascess the material. For further information visit Online Learning Program
Tuesday, 25 May 2010
Newton's Law of Motion (Objective Type Questions)
(1)Friction force can be reduced to great extent by
a. lubricating the two moving parts
b. using ball bearing between two moving parts
c. introducing a thin cushion of air maintained between two relatively moving surfaces
d. all the above
(2) Force exerted on a body can change its
a. kinetic energy
b. direction of motion
c. speed
d. momentum
(3) A block is released from the top of a smooth inclined plane. Another block of same mass is allowed to fall freely from the top of the inclined plane. Both blocks reach the bottom of the plane
a. with equal speed
b. in equal interval of time
c. with equal kinetic energy
d. with equal momentum
(4) Which of the following expression does not represent the force acting on the body of mass m
a. GMem/(Re)2
b. ma
c. μN
d. 6ηπrv
(5) A body of mass m is resting on the floor. A minimum amount of force is applies on the body and the force continues to act on the body as it moves. If coefficent of static and dynamic friction are 0.4 and 0.3 resp. then the acceleration of the body is
a. 0
b. 3.98
c. 0.98
d. 4.98
Answer
(1) d.
(2) a, b, c, d
(3) a and c
(4) d
(5) c
you can discuss these questions with me by becoming a member of my group physicsgoeasy
I'll be happy to help.
a. lubricating the two moving parts
b. using ball bearing between two moving parts
c. introducing a thin cushion of air maintained between two relatively moving surfaces
d. all the above
(2) Force exerted on a body can change its
a. kinetic energy
b. direction of motion
c. speed
d. momentum
(3) A block is released from the top of a smooth inclined plane. Another block of same mass is allowed to fall freely from the top of the inclined plane. Both blocks reach the bottom of the plane
a. with equal speed
b. in equal interval of time
c. with equal kinetic energy
d. with equal momentum
(4) Which of the following expression does not represent the force acting on the body of mass m
a. GMem/(Re)2
b. ma
c. μN
d. 6ηπrv
(5) A body of mass m is resting on the floor. A minimum amount of force is applies on the body and the force continues to act on the body as it moves. If coefficent of static and dynamic friction are 0.4 and 0.3 resp. then the acceleration of the body is
a. 0
b. 3.98
c. 0.98
d. 4.98
Answer
(1) d.
(2) a, b, c, d
(3) a and c
(4) d
(5) c
you can discuss these questions with me by becoming a member of my group physicsgoeasy
I'll be happy to help.
Thursday, 20 May 2010
Electrostatic questions for board exams
Q.1 A certain region has spherical symmetry of electric field. Name the charge distribution producing such a field.
Q.2 Represent graphically the variation of electric field with distance, for a uniformly charged sphere.
Q.3 How will the radius of a flexible ring change if it is given positive charge?
Q.4 Five Charges of equal amount (q) are placed at five corners of a regular hexagon of side 20 cm. What will be the value of sixth charge placed at sixth corner of the hexagon so that the electric field at the centre of hexagon is zero ?.
Q.5 Two conducting spheres of radii r1 & r2 are at same potential. What is the ratio of charges on the spheres?
Q.7 An electric charge q is placed at one of the corner of a cube of side ‘a’. What will be the electric flux through its one of the face?
Q.8 A charge Q is divided in two parts q and Q - q separated by a distance R. If force between the two charges is maximum, find the relationship between q & Q.
Q.9 If 20 drops of same size, each having the same charge, coalesce to form a bigger drop. How will the following vary with respect to single small drop?
(i)Total charge on bigger drop
(ii) Potential on the bigger drop
(iii) The capacitance on the bigger drop
Consider the drops to have spherical symmetry.
Q.10 Work done to move a charge along a closed path inside an electric field is always zero, using this fact, prove that it is impossible to produce an electric field in which all limes of force would be parallel lines and density of their distribution would constantly increase in a direction perpendicular to the lines of force.
you can discuss any querry related to these questions with me at my group
physicsgoeasy
Q.2 Represent graphically the variation of electric field with distance, for a uniformly charged sphere.
Q.3 How will the radius of a flexible ring change if it is given positive charge?
Q.4 Five Charges of equal amount (q) are placed at five corners of a regular hexagon of side 20 cm. What will be the value of sixth charge placed at sixth corner of the hexagon so that the electric field at the centre of hexagon is zero ?.
Q.5 Two conducting spheres of radii r1 & r2 are at same potential. What is the ratio of charges on the spheres?
Q.7 An electric charge q is placed at one of the corner of a cube of side ‘a’. What will be the electric flux through its one of the face?
Q.8 A charge Q is divided in two parts q and Q - q separated by a distance R. If force between the two charges is maximum, find the relationship between q & Q.
Q.9 If 20 drops of same size, each having the same charge, coalesce to form a bigger drop. How will the following vary with respect to single small drop?
(i)Total charge on bigger drop
(ii) Potential on the bigger drop
(iii) The capacitance on the bigger drop
Consider the drops to have spherical symmetry.
Q.10 Work done to move a charge along a closed path inside an electric field is always zero, using this fact, prove that it is impossible to produce an electric field in which all limes of force would be parallel lines and density of their distribution would constantly increase in a direction perpendicular to the lines of force.
you can discuss any querry related to these questions with me at my group
physicsgoeasy
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