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Physics

Physics
What is the value of 1 kW = ?

1000 W
10 W
10000 W
100 W

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Physics
According to the theory of relativity, which of the following always remains constant ?

Length of an object
Time
Space
Velocity of light

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Physics
Which term is not associated with sound wave?

Decibel
Hertz
Mach
Candela

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Physics
The Solar energy produced by

Fusion reaction
None
Fission reaction
Combustion reaction

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Physics
Dioptre is the unit of

Sound intensity
Light intensity
Power of a lens
Focal length of a lens

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Physics
Two electric bulbs marked 25W – 220V and 100W – 220V are connected in series to a 440Vsupply. Which of the bulbs will fuse?

Neither
Both
100 W
25 W

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