Question # 1

The expression of Hook's law is

Choose an answer

F=ma

F=kx

F= -kx

-kx=ma

A second's pendulum is a pendulum whose time period is

Choose an answer

1 second

2 seconds

3 seconds

4 seconds

The waves produced in a microwave oven have frequency

Choose an answer

2450 Hz

2450 K Hz

2450 M Hz

2450 G Hz

A string is stretched between two points and is plucked at right angles to its length, the vibration produced is:

Choose an answer

Longitudinal wave

Transverse wave

No vibration at all

None of them

Which of the following medium/media can transmit both transverse and longitudinal waves:

Choose an answer

Solids

Liquids

Gases

All of them

The number of vibrating body at any instant from its equilibrium position is called

Choose an answer

displacement

frequency

amplitude

time period

If the displacement of a body executing S.H.M is plotted against time, then the curve is known as

Choose an answer

frequency of S.H.M

period of S.H.M

wave form

none of them

An object undergoes S.H.M has maximum acceleration when its displacement form the means position

Choose an answer

maximum

zero

half of the maximum value

one third of the maximum value

If one end of a rubber cord is fixed with a support and the other end is wiggled by hand, the waves generated on the card are:

Choose an answer

Stationary waves

Transverse waves

Both of these

None of these

The frequency of free vibrations is known as

Choose an answer

free frequency

forced frequency

natural frequency

un-natural frequency

Velocity of sound in vacuum (in m/s) is

Choose an answer

330

1000

156

0

Ultra-violet rays differ from X-rays in that they

Choose an answer

Cannot be diffracted

Cannot be polarized

Have a lower frequency

Are deviated when they pass through a magnetic field

Smaller the damping, greater will be the

Choose an answer

frequency

wavelength

amplitude

none of them

SI unit of frequency is

Choose an answer

second

hertz

revolution

vibrations/sec

Time period of a simple pendulum depends upon the

Choose an answer

length of the pendulum

acceleration due to gravity

none of them

both of them

Example of progressive wave is

Choose an answer

transverse waves

longitudinal waves

both of them

none of them

More Classes

Other Links

Physics ECAT Pre Engineering Chapter 8 Waves Online Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer