Question # 1

The distance between two consecutive crest is called.

Choose an answer

Displacement

Amplitude

Wave front

Wavelength

When two identical travelling waves are superimposed, velocity of resultant wave.

Choose an answer

Decreases

Increases

Remain same

Becomes zero

Half wavelength corresponds to

Choose an answer

0 ^o

90 ^o

180 ^o

360 ^o

Sound travel faster in

Choose an answer

CO2

H2

O2

He

According to Newton's formula, the speed of sound in air at STP is

Choose an answer

332 ,ms-1

340 ms-1

350 ms-1

280 ms-1

In which medium the speed of sound is greater.

Choose an answer

Oxygen

Air

Water

copper

Choose an answer

The distance between two consecutive crests of troughs is called

Choose an answer

Time period

Wave length

Frequency

Displacement

According to Newton, sound travels in air under conditions of.

Choose an answer

Adiabatic

Isothermal

Isobaric

Isochoric

The speed of stars and galaxies can be calculated by

Choose an answer

Compton effect

Stefan's law

Doppler's effect

Pascal's law

If 30 waves per second pass through a medium at a speed 30 ms-1, then the wavelength is.

Choose an answer

30 m

15 m

1 m

28 m

Who did give the correct formula for the speed of sound in air?

Choose an answer

Boyle

Laplace

Newton

Einstein

Teh speed of sound in air is 340 m/s. If the pressure of air is doubled then the speed becomes.

Choose an answer

Double

Half

Four times

Remains same

Wavelength of a wave for closed pipe having length 'l' in the fundamental mode is.

Choose an answer

2 l

1/2

4 l

l

the velocity of sound is maximum at 20 ^oC in

Choose an answer

Lead

Copper

Glass

Iron

Diffraction is a special type of

Choose an answer

Reflection

Polarization

Interference

Refraction

The process followed by Newton for the determination of speed of sound in air is

Choose an answer

Adiabatic

Isothermal

Isobaric

Isochoric

In transverse waves the particles of medium vibrate

Choose an answer

Along the direction of wave

Opposite to direction of wave

Perpendicular to direction of wave

Slowly

Sound waves are

Choose an answer

Electromagnetic waves

Transverse waves

Compressional waves

Matter waves

The speed of sound in air does not depend upon

Choose an answer

Temperature

Pressure

Density

Medium

Speed of sound in vacuum is

Choose an answer

280 ms-1

332 ms-1

333 ms-1

Zero ms-1

Stationary waves are generated on a string of high l, if tension is increased , frequency of vibration will

Choose an answer

Decrease

Unchanged

Half

Increases

When two waves having same frequency traveling in same direction combine, phenomenon is called

Choose an answer

Wave motion

Combination of waves

Interference

Diffraction

When the amplitude of a wave is increase to doubled is energy.

Choose an answer

Remain the same

Increases 4 times

Increases by two times

Decreases by half

More Classes

Other Links

Physics Fsc Part 1 Chapter 8 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

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer