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Physics

Physics
Loudness of sound depends on

Wavelength
Pitch
Frequency
Amplitude

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Physics
Planck's constant has the dimensions of :

Force
Angular momentum
Energy
Linear momentum

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Physics
Copper wires are generally used for electrical power transmission instead of iron wire because :

Copper is cheaper than iron
Copper is lighter than iron
Copper can take higher power than iron
Copper is a better conductor of electricity than iron

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Physics
Which of the following is a result of Surface tension ?

Capillary action
Gravitational pull
Viscosity
Radiation

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Physics
When two similar sources vibrate with slightly different frequencies, a regular rise and fall occurs in the loudness of tone. This phenomenon is known as

Doppler effect
Beats
Echo
Resonance

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Physics
Least audible sound for most of the human ear is :

0.0002 µ bar
10.0 µ bar
5.0 µ bar
0.005 µ bar

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MORE MCQ ON Physics

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