PHYSICS ASSIGMENT

Subject : Physics
Teacher : Mis.Surbhi

                                       ASSIGNMENT NO- 2nd

Q1) How fast would a rocket have to go relative to an observer fix its length to be contracting by 99% of its length at rest?

Q2) Prove that magnitude of momemtum of a particle of rest mass m(not) and kinetic energy T is given by p=(t square/c square+2mT)^1/2?

Q3)Why cannot an object of mass m travel faster that speed of light?

Q4)What is the rest mass of photon? derive ?

Q5)Calculate the expected fringe shift in a Michelson-Morley experiment if the distance from each path is 2m and light has wavelength 60000X10^minus10. given V=3x10^4 and c=3X10^8m/s?

Q6)Calculate the % contraction of rod moving with a velocity of 0.8 in direction inclined to 60 degree to its own length?