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Physics

Physics
Pa(Pascal) is the unit for

Conductivity
Thrust
Frequency
Pressure

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Physics
Waves that are required for long distance wireless communication are

Infrared rays
Radio waves
Microwaves
Ultraviolet rays

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Physics
Which law is also called law of inertia ?

Newton third law
Newton second law
Newton first law
All of above

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Physics
Bandwidth is the

None of these
The rate of data transfer
A measure of the width of a range of frequencies
Both a & b

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Physics
A metal-semiconductor junction diode is called ________

Schottky diode
Photo diode
Tunnel diode
P-N Juction diode

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Physics
A convex mirror of focal length f (in air) is immersed in a liquid (u=4/3). The focal length of the mirror in the liquid will be :

(4/3)f
F
(3/4)f
(7/3)f

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