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Physics

Physics
The speed of sound travel fastest through

Gas
Liquid
None of these
Solid

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Physics
The density of water is 1 g/cc. This is strictly valid at

100°C
4°C
0°C
25°C

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Physics
The device which transfer the signal from low resistance region to high resistance region is

Diode
Transistor
Inductor
Capacitor

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Physics
The increasing order of the refractive index of certain materials is (left to right) ________

Rock Salt, Ice, Benzene, Kerosene
Kerosene, Ice, Benzene, Rock Salt
Rocksalt, Benzene, Kerosene, Ice
Ice, Kerosene, Benzene, Rock Salt

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Physics
A system exhibiting S.H.M. must possess

Elasticity, inertia and an external force
Elasticity as well as inertia
Elasticity only
Inertia only

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Physics
For which of the following substances, the resistance decreases with increase in temperature?

Pure silicon
Nichrome
Platinum
Copper

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