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Physics

Physics
For which Diode is used ?

Purification
Oscillation
Modulation
Amplification

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Physics
The method of magnetisation is:

Passing direct current through it
Heating a magnet
Passing alternating current through it
Hammering a magnet

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Physics
If velocity is constant then acceleration is what?

Infinite
Zero
Increasing
Constant

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Physics
An image formed by a plane mirror, that cannot be obtained on a screen is called ________

Virtual image
Inverted image
Real image
Erect image

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Physics
Speed regulation of synchronous motor is

0.25
0.01
0.005
Zero

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Physics
When a steel ball is placed on the surface of mercury, it does not sink because

Of the surface tension of mercury
Mercury is a semisolid
Of the high viscosity of mercury
The density of mercury is greater than that of steel

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