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Physics

Physics
The device used to change the speed of an electric fan is

Regulator
Switch
Amplifier
Rectifier

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Physics
Solar cells work on the principle of

Photoelectric effect
Photovoltaic effect
Photoconductive effect
Photosynthesis

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Physics
The energy stored in a watch spring is

Potential energy
Kinetic energy
Chemical energy
Heat energy

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Physics
A man standing close to the platform at a railway station experiences a pulling force towards a fast moving train because of ________ .

Illusion of the man
Gravitational force between train and man
The centripetal force
Pressure difference due to fast moving air in between

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Physics
Submerged objects can be located using

Sonar
Quasar
Pulsar
Radar

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Physics
No current will flow between two charged bodies if they have the same

Charge/ potential ratio
Potential
Charge
Resistance

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MORE MCQ ON Physics

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