Physics Champion Contest-3

Welcome to the Physics Champion Contest!!!!!!!!!!!

We present the First Physics Champion Contest

Winner will get Heat and thermodynamics package free.!!!!!!!!!!!!!!!!!!!!!
Procedure
1 This contest is for all the students studying in 10th to 12th ,students preparing Engineering and Medical examination
2.There are 5 multiple choice questions.You have pick the correct choice ,send to us in Format given below
3.You will be choosen for lucky draw only when all the question are correct.
4. Winner will be choosen from the lucky draw from All those candidate who give all write answer
5. You have to send the answer and the information to the following mail address in following format


TO address: mailmephysics12@rediffmail.com
Subject:Physics Champion Contest-III

Body:

About Yourself
Name:
Father's Name:


Answers
1.
2.
3.
4.
5.

Thanks


7 This contest is valid from 26 June 2009 to 26 Sep 2009.Winner will be announced on the site on 30 Sep 2009.


Multiple choice questions with one answer only
1. The potential energy (in joule) of a body of mass 2 Kg moving in the x-y plane is given by
U=6x+8y
Where the position coordinates x and y are measured in meters.If the body is at rest at point (6m,4m) at time t=0,it will cross the yaxis at time t equal to
a. 2s
b. 1s
c. 3s
4. 4s

2.Find the electric field inside the sphere which carries a charge density proportional to the distance from the origin
ρ = kr
a. ρ/ε₀
b. ρr/ε₀
c. ρr²/ε₀
d. none of the above


3.A conductor of nonuniform curvature, the charge
a. is distributed uniformly over its volume
b. is distributed uniformly over surface
c. has the greatest concentration on the part of greatest curvature
d. has the greatest concentration on the part of least curvature


4.Two particle X and Y travel along the x and y axis respectively with velocities
v₁=2i m/s
v₂=3j m/s
At t=0 they are at X(-3,0) and Y(0,-3)

Find the vector which represent the position of Y relative to X as function of the time t
a.(3t-3)j+(3-2t)i
b.(2t-3)i + (3-3t)j
c. -3i-3j
d. 3i+3j

5. Six particles situated at the corner of a regular hexagon of side 1 m move at a constant speed 2 m/s.Each particle maintians a direction towards the particle at the next corner.Calculate the time the particle will take to meet each other.
a. 2
b. 1/2
c. 1
d . 3/2

Winner of Physics Champion Contest -2

Hi All

We receive lot of entries for the contest.Thanks all for the Response

Answer to the questions are
1. c
2.a
3.b,c
4.b
5.a

The winner of the contest is Indranil Chakraborty from Mussoorie, Uttarakhand
He will soon recieve the stationary Gift worth RS 200
Congratutlation!!!!!!!!!!!!!


Thanks to all for overwhelming response!!!!!

Physics Champion Contest

Physics Champion Contest-I


Winner will get stationary gift pack worth Rs 200.!!!!!!!!!!!!!!!!!!!!!

Procedure

1 This contest is for all the students studying in 10th to 12th ,students preparing Engineering and Medical examination
2.There are 5 multiple choice questions.You have pick the correct choice ,send to us in Format given below
3.You will be chosen for lucky draw only when all the question are correct.
4. Winner will be chosen from the lucky draw from All those candidate who give all write answer
5. In the format given below,you have to also write the name of the friends who referred you this site
There is lot of importance of this field.Let me explain that
Based on the data provided by you all,we will make a list like this

Candidate	No of times it is referred
kunal	10
kushal	5

If that candidate has sent the entry for the contest and also if he qualifies for the lucky draw,then his name will be entered in the lucky draw as many times as he was referred.So students you good chance of winning,if you referred this site to more and more people

6 You have to send the answer and the information to the following mail address in following format

To_address: contest2win_phygoeasy@rediffmail.com Subject:Physics Champion Contest-I About Yourself Name :Write your Full Name Father's Name :Write your Full Name ADDRESS :To which gift will be sent.Please enter the pin code Referred by :Name of the friend who refrred you to this site Mail address of Refrred by :Mail address of the person who referred u Answers 1. 2. 3. 4. 5. Thanks

7 This contest is valid from 22 May 2008 to 30 June 2008.Winner will be announced on the site on 10 July 2008.
8.I will cover the cost of shipping. There is no cost to you.


Contest Questions

Mulitiple choice questions with one or more answer
1. A composite slab is prepared by pasting three slab of thickness L₁,L₂,L₃ and thermal conductivity K₁,K₂,K₃.The slab have equal crossectional area.Find the equilvalent thermal conductivity
a.K₁K₂K₃(L₁+L₂+L₃)/K₂K₃L₁+K₁K₃L₂+K₁K₂L₃
b.K₂K₃L₁+K₁K₃L₂+K₁K₂L₃/K₁+K₂+K₃
c. K₁+K₂+K₃/L₁+L₂+L₃
d. L₁+L₂+L₃/K₁+K₂+K₃


2.A metallic shell has charge q placed at the center.An excess charge Q is given to the shell
Which one is true
a. Outer surface has q+Q charge uniformly distributed
b. Outer surface has Q charge nonuniformly distributed
c. Outer surface has Q charge uniformly distributed
d. Outer surface has q+Q charge nonuniformly distributed

3.Which of the following is noninertial frame of refrence
a. A train which speeding Up
b. A train with constant speed
c. A train which speeding down
d A train at rest

4.what is of these is true for Projectile motion
a. Velcoity is perpendicular to acceleration at the highest point
b. Horizontal components of velocity remains constant through out the path
c. Range of the projectile is given by Horizontal component of velocity X Time of flight
d. None of the above

5.A transverse wave in a medium is described by the equation y=Asin²(wt-kx).The magnitude of the maximum velocity of particles in the medium is equal to that of the wave velocity.if the value of A is
a.λ/2π
b λ/4π
c. λ/π
d 2λ/π