Question # 1

In the formula for finding the speed of waves in the spring, unit of m in SIn units is:

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kg

kg-meter

kg/meter

Meter/kg

The portion of the water above its mean level forms a:

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Crest

Trough

Both A and B

None of these

The process in which energy is dissipated from the oscillating system is known as

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resonance

interference

diffraction

damping

When the bob of simple pendulum is at extreme position, its K.E. will be

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maximum

minimum

zero

all of them

Transverse waves can be set up:

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Solids

Liquids

Gases

All of them

In the same medium, velocity of the wave:

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Goes on increasing

Remains constant

Goes on decreasing

None of these

Progressive waves of frequency 300 Hz are superimposed in produced a system of stationary waves in which adjacent nodes are 1.5 m apart. What is the speed of the progressive waves?

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100 ms^-1

200 ms^-1

450 ms^-1

900 ms^-1

Energy is not carried by

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Transverse progressive waves

Longitudinal vibration

Stationary waves

Electromagnetic

The waves produced in a microwave oven have wavelength.

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12 mm

12 cm

12 m

12 mm

Decibel is unit of

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Intensity of light

x-ray radiation capacity

sound loudness

Energy of radiation

Which waves are used in sonography?

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Microwaves

Infra red waved

Sound waves

Ultrasonic waves

When a mass 'm' is pulled slowly, the spring stretches by an amount x₀,then the average force would be

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F= Kx₀

F=1/2Kx₀

F=2Kx₀

F=4Kx₀

It two waves of amplitude 'a' produce a resultant wave of amplitude a, then the phase difference between them will be

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60°

90°

120°

180°

Time period of simple pendulum is independent of

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length

mass

acceleration due to gravity

none of them

Which one is not produced by sound waves in air?

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Polarization

Diffraction

Refraction

Reflection

The waves in which the particles of the medium are displaced in a direction perpendicular to the direction of propagation of waves are known as

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longitudinal waves

transverse waves

non-mechanical waves

none of them

In stationary waves

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Energy is uniformly distributed

Energy is minimum at nodes and maximum at antinodes

Energy is maximum at nodes and minimum at antidotes

Alternating maximum and minimum energy producing at nodes and antinodes

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