Physics Quarter-2

The time period of a simple pendulum is 2sec. If the length is increased by 4 times, then its period become

• 16 sec

• 12 sec

• 8 sec

• 4 sec

The Laplace correction in the expression for the velocity of sound is needed because sound waves

• Are of long wavelength

• Propagate isothermally

• Propagate adiabatically

• Are longitudinal

A system exhibiting S.H.M must have

• Elasticity, inertia and an external force

• Elasticity as well as inertia

• Elasticity only

• Inertia only

Doppler shift in frequency is independent of

• Distance from source to observer

• The speed of source

• The speed of observer

• The frequency of waves produced

By rubbing the objects together, their internal energy:

• Remains constant

• Decreases

• Increases

• Becomes zero

The ratio of fundamental wavelengths of one end close pipe to the both end open

pipe having same lengths

• 1 : 4

• 4 : 1

• 1 : 2

• 2 : 1

The total energy of a particle executing SHM of amplitude xo is independent to

• x₀

• 1/x₀^-2

• x

Which type of wave is used in submarine navigation system

• Transverse

• Longitudinal

• Both

• None

If Cp=56 KJ and Cv=28 KJ then find number of moles.

• 2.36

• 3.36

• 4.36

• 5.36

Which of the following quantities is non-zero at the mean position for a particle

executing SHM?

• Force

• Acceleration

• Velocity

• Displacement