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Physics

Physics
Intensity of gravitational field of earth is maximum at

Surface
Centre of earth
Equator
Poles

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Physics
The distance between node and adjacent antinode is 30 cm. The wavelength is

90 cm.
30 cm.
120 cm.
60 cm.

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Physics
Intensity of any wave is proportional to which of the following?

Amplitude
Square root of amplitude
Square of amplitude
Cube of amplitude

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Physics
Acceleration is the rate of change of

Jounce
Speed
Velocity
Jerk

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Physics
A decibel is

A musical note
A musical instrument
The wavelength of noise
A measure of sound level

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Physics
Which of the following property of sound is affected by change in air temperature?

Wavelength
Intensity
Amplitude
Frequency

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