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Physics

Physics
Which one of the following has the highest value of specific heat?

Copper
Water
Lead
Glass

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Physics
Full form of CFL used in place of electric bulbs is

Compact fluorescent lamp
Closed filament lamp
Constantan filament lamp
Closed fluorescent lamp

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Physics
The unit of intensity of electric field is

N/m
N/c
J/c
Volt

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Physics
The width of depletion layer of a P-N junction

Decreases with light doping
Is independent of applied voltage
Increases with heavy doping
Is increased under reverse bias

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Physics
A freely suspended magnet remains horizontal at

The magnetic south pole
The magnetic north pole
The geographic pole
The magnet equator

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Physics
Optical fibres are based on the phenomenon of

Interference
Total Internal Reflection
Diffraction
Dispersion

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