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Physics

Physics
The unit of energy in MKS system is

Erg
Ohm
Volt
Joule

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Physics
In a Carnot engine when heat is taken from the source, its temperature

Decreases and then remains constant
Remains constant
Increases
Decreases

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Physics
An electric iron of 750 W is used for S hours per day. Then the energy consumed in one day by the iron is:

600 units
60 units
0.6 units
6 units

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Physics
According to the Second Law of Motion, for a given force, acceleration is inversely proportional to the ________ of an object.

Volume
Density
Force
Mass

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Physics
Sir C.V. Raman was awarded Nobel Prize for his work connected with which of the following phenomenon of radiation?

Interference
Diffraction
Polarization
Scattering

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Physics
Which one of the following animals can hear ultrasonic sound ?

Squirrel
Cat
Bat
Rat

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