Engineering Questions — Physics

Q.44. A body of mass 2 kg is moving along x-direction such that its displacement as function of time is given by , where , and . The work done on the body during the time interval to , is ..........

Q.35. One mole of diatomic gas having rotational modes only is kept is a cylinder with a piston system. The cross-section area of the cylinder is 4 cm². The gas is heated slowly to raise the temperatu

Q.31. A particle is rotating in a circular path and at any instant its motion can be described as . The angular acceleration of the particle after seconds is ____ rad/s.

Q.33. Heat is supplied to a diatomic gas at constant pressure. Then the ratio of is

Q.46. An electromagnetic wave of frequency 100 MHz propagates through a medium of conductivity, mho/m. The ratio of maximum conducting current density to maximum displacement current density is _____

Q.37. A particle is executing simple harmonic motion. Its amplitude is A and time period is 5 sec. the time required by it to move from to is ____ sec.

Q.34. The temperature of a metal strip having coefficient of linear expansion is increased from T to T resulting in increase of its length by . The temperature is further increased from T to T, such

Q.29. The position of an object having mass kg as a function of time is given as m. At s, which of the following statements are correct? A. The linear momentum kg.m/s. B. The force acting on the

Q.27. Two cars A and B are moving in the same direction along a straight line with speeds 100 km/h and 80 km/h, respectively such that car A is moving ahead of car B. A person in car B throws a stone

Q.44. The ratio of momentum of the photons of the 1st and 2nd line of Balmer series of Hydrogen atoms is . The possible values of and are :-