Question # 1

The distance covered by the wave during one period is called its:

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Wave number

Frequency

Wavelength

Time period

Decibel is unit of

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Intensity of light

x-ray radiation capacity

sound loudness

Energy of radiation

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:

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Stationary waves

Transverse waves

Both of these

None of these

Which type of wave can be set up in solids

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longitudinal waves

transverse waves

both of them

none of them

If the time period a simple pendulum is 2 s, its frequency would be

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2 Hz

1.5 Hz

1.0 Hz

0.5 Hz

Example of vibratory motion is

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mass suspended from a spring

a bob of simple pendulum

mass attached to a spring placed

all of them

A heavily damped system has a fairly

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sharp resonance curve

flat resonance curve

both of them

none of them

When an oscillatory motion repeats itself, then this type of motion is called

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vibratory motion

constant motion

fixed motion

periodic motion

The waves which propagate out in space due to oscillation of electric and magnetic fields are known as

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e.m. waves

mechanical waves

sound waves

water waves

The distance covered by the wave in one second is:

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Wave number

Wave length

Frequency

Wave speed

Which one of the following is an example of resonance

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swing

tuning a radio

microwave oven

all of them

If F=0.04 N and X=4 cm then K=

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1 Nm^-1

2 Nm^-1

3 Nm^-1

4 Nm^-1

Si units of time period is

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second

hertz

revolution

vibration/sec

The loudness and pitch of a sound note depends on

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Intensity and velocity

Frequency and velocity

Intensity and frequency

Frequency and number of harmonic

Data transmitted along glass-fiber cables is in the form of pulses of monochromatic red light each of duration 2.5 ns. Which of the following is the best estimate of the number of wavelength in each pulse?

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10³

10⁶

10⁹

10¹²

One complete round trip of the body about its mean position is called

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displacement

vibration

a complete motion

an acceleration

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