10th Class Physics MCQS Chapter 2

If the displacement in spring is ‘x’ of mass “m” attached with a spring then restoring force is:

F=ma

F=kx

F=-kx

F= m/a

The displacement produced in the spring is directly proportional to force is called:

Newton’s law

Joule’s law

Hook’s law

Boyle’s law

Mathematical formula of sound level (in bel) is:

S.L = Log I/Io (bel)

S.L = 10 log Io/I (bel)

S.L = 10 log I/Io (bel)

S.L = K log I/Io (bel)

When a body moves to and fro about a point, its motion is called:

Rotatory motion

Vibratory motion

Linear motion

Random motion

The sound waves are the example of:

x rays

Transverse waves

Longitudinal waves

Electromagnetic waves

Bets can hear sound of frequency up to:

1000 Hz

120,000 Hz

25000 Hz

100,000 Hz

1 KB = :

1024 bytes

1024 KB

None of these

1024MB

the part of waves at which particles of the medium are below the normal position are called:

crest

trough

extreme position

compression

The speed of sound of water at 25 ^oC is:

1560 ms ¹

1531 ms^-1

1570 ms ¹

1530 ms ¹

Sound waves are an example of:

Longitudinal waves

Electromagnetic waves

All of these

Transverse waves