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Physics

Physics
Rear view mirror of car is convex or concave?

Can't be determined
Convex
Both A & B
Concave

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Physics
If the diameter of a capillary is doubled, then the rise of water in it will be

Two times
No change
Four times
Half

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Physics
Soap bubble attains spherical shape due to ________

Surface tension
Inertia
Viscosity
Pressure

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Physics
Infrasonic sound has a frequency lower than

5 Hz
32 Hz
20 Hz
15 Hz

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Physics
The magnitude of current flowing between two end points of a conductor is proportional to the potential difference between them and is called as:

Ohms law
Rault's law
Avogadro's law
Faraday's law

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Physics
Two metallic wires made from copper have same length but the radius of wire 1 is half of that of wire 2. The resistance of wire 1 is R. If both the wires are joined together in series, the total resistance becomes

3R/4
5R/4
2R
R/2

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