Question # 1

The waves in which particles of the medium vibrate perpendicular to the directions waves are:

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Electromagnetic waves

Sound waves

bothe a and b

Transverse waves

In a vacuum all electromagnetic waves have the same:

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Speed

frequency

amplitude

wavelength

Which of the following characteristics of a wave is independent of the others:

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speed

frequency

amplitude

wavelength

At mean position of pendulum, the potential energy of the pendulum is:

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Maximum

Minimum

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Both a and c

A device which has two ways of communication is:

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television

radio

hard disk

mobile phone

The waves in which particle of the medium vibrate parallel to the direction of waves are called

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Longitudinal waves

Transverse waves

Electromagnetic waves

both b and c

Diffraction of wave can be observed clearly only when the size of slit or obstacle is nearly__________ to the wavelength of the wave:

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Two times

Equal

Four times

None of these

If the mass of the bob of a pendulum is increased by a factor of 3. The period of the pendulum's motion will:

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Be increased by a factor 2

Remain the same

Be decreased by a factor of 2

Be decresaed by a facro of 4

Waves transfer:

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Energy

Wavelength

Velocity

frequency

The instrument used to study the properties of waves is called:

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Ripple tank

Stroboscope

Pendulum

None of these

The motion in which the friction reduces the mechanical energy of the system as times passes and the amplitude of motion reduces is called:

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SHM

Randum motion

Damped motion

None of these

The waves, which are used to detect the broken bones, are called:

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Light waves

x-rays

Sound waves

both b,c,

A large ripple tank with a vibrator working at a frequency of 30 Hz produces 25 complete waves in a distance of 50 cm.

The velocity of the wave is:

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53 cms^-1

60 cms^-1

750 cms^-1

1500cms^-1

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10th Class Physics Chapter 10 Simple Harmonic Motion and Waves English Medium KPK Boards Online Mcqs MCQs With Answers

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