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Physics

Physics
Red light has a wavelength of 70 A°. In "nm" it is

70 nm
700 nm
0.07 nm
7 nm

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Physics
In electronics what comes under tank circuit ?

Resistance and capacity
Capacity and inductance
Resistance, capacity and inductance
Resistance and inductance

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Physics
The SI unit for measuring work and energy is

Watt
Farad
Ohm
Joule

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Physics
Nuclear reactors used to produce electricity are based on

Cold fusion
Superconductivity
Nuclear fusion
Nuclear fission

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Physics
Suppose voltage V is applied across a resistance R. The power dissipated in the resistance is P. Now the same voltage V is applied across a parallel combination of three equal resistors each of resistance R. Then the power dissipated in the second case will be

P/3
3P
P
2p/ 3

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Physics
The lift of an aeroplane is caused by

Bernouli's theorem
Theorem of continuity
Pascel's law
Law of gravitation

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MORE MCQ ON Physics

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