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Physics

Physics
Positive feedback is used in

Amplifiers
None of these
Oscillators
Rectifiers

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Physics
Planck's constant has the dimensions of :

Force
Energy
Linear momentum
Angular momentum

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Physics
One watt-hour is equivalent to

3.6 x 10-3 J
6.3 x 10-7 J
6.3 x 103 J
3.6 x 103 J

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Physics
Anemometer is an instrument meant for measuring ________

Air masses
Temperature
Velocity
Wind speed

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Physics
A photostat machine works on

Electromagnetic image making
Thermal image making
Electrostatic image making
Magnetic image making

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Physics
Which of the following is an example for cantilever beam?

Common balance
Bridge
Diving board
See-saw

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