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Physics

Physics
Conversion of sound energy into electrical energy is done by

Microphone
Loudspeaker
Solar cell
Gramophone

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Physics
For photoelectric effect to take place, the metal used as the cathode should have ________

Low work function
Low melting point
High melting point
Low resistance

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Physics
Which of the following has the longest wavelength?

Visible radiation
X-ray radiation
Infrared radiation
Ultraviolet radiation

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Physics
Centrifugal force increases with

Acceleration
Temperature
Pressure
Humidity

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Physics
The SI unit of resistance is:

Coulomb
Ohm
Newton
Joule

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Physics
Negative acceleration is in the opposite direction of:

Velocity
Distance
Force
Momentum

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