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Physics

Physics
Pa(Pascal) is the unit for

Thrust
Frequency
Pressure
Conductivity

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Physics
Gravitational force is maximum at which place

Tropic of capricorn
Poles
Equator
Tropic of cancer

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Physics
Large transformers, when used for some time, become very hot and are cooled by circulating oil. The heating of the transformer is due to:

Hysteresis loss alone
Intense sunlight at noon
The heating effect of current alone
Both the heating effect of current and hysteresis loss

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Physics
If the length of a simple pendulum is halved then its period of oscillation is

Decreased by a factor 2
Halved
Doubled
Increased by a factor 2

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Physics
The phenomenon of light associated with the appearance of blue colour of the sky is

Scattering
Reflection
Interference
Refraction

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

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

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