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Physics

Physics
'Therm' is the unit of

Distance
Light
Power
Heat

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Physics
A potentiometer wire is 100 cm long and a constant potential difference is maintained across it. Two cells are connected in series first to support one another and then in opposite direction. The balance points are obtained at 50 cm and 10 cm from the positive end of the wire in the two cases. The ratio of the emf's is :

0.20902777777778
0.12777777777778
0.21111111111111
0.12638888888889

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Physics
The unit of energy in MKS system is

Erg
Ohm
Joule
Volt

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Physics
The splitting of different colours of light in a prism is :

Refraction of light
Disperson of light
Reflection of light
Diffraction of light

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Physics
Which of these branches of Physics deal with heat and temperature and their relation to energy and work?

Mechanics
Geophysics
Thermodynamics
Atomic Physics

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Physics
The atmosphere is heated mainly by

Insolation
Conduction
Radiation
Convection

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