Question # 1

The formula of time period of simple pendulum is:

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T = 2π √L/g

T = 2π (L/g)

T = 2π√1/g

T = 1/2π √L/g

If a wave moves in a slinky spring with frequency of 4Hz and wave length of 0.4m, the speed of the wave will be:

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1.0 ms-1

1.2 ms-1

1.4 ms-1

1.6 ms-1

The maximum displacement from mean position is called:

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Maximum height

Time period

Amplitude

Intervel

The vacuum all electromagnetic wave have the same

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speed

frequency

amplitude

wavelength

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

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Hook's law

Boyle's law

Newton's law

both 'b' and 'c'

The relation between v,f andλ of a wave is:

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vf=λ

fλ = v

vλ =f

v=λ/f

The unit of spring constnat is:

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m

kg

Nm²

Nm^-1

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

The ratio of external force applied on the spring to displacement is called:

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Hook's law

Constant

Spring constant

During S.H.M acceleration of the body is maximum at:

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Mean position

Extreme positions

Between mean & Extereme

None of these

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

In a vacuum all electromagnetic waves have the same:

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Speed

frequency

amplitude

wavelength

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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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