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Physics

Physics
A machine powered by rotating blades is a

Fumerole
Turbines
None of these
Solar panel

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Physics
Which of these is true of all simple machines?

None of these
Both A & B
Work input > work output
These make work easier

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Physics
Which of these waves can be polarized ?

Light waves
Longitudinal waves on a string
Transverse waves on a string
Sound waves in air

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Physics
When a person sitting on a swing stands up on the swing, the frequency of oscillation

Does not change
Increases
Decreases
Becomes infinite

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Physics
Decibel is the unit used for

Intensity of sound
Radio wave frequency
Speed of light
Intensity of heat

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Physics
Which of the following features of a tunnel diode is its drawback

Instability due to negative resistance
Very low power consumptions
Very wide temperature range of operations
Extremely high frequency response

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MORE MCQ ON Physics

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