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Physics

Physics
Which term is not associated with sound wave?

Candela
Decibel
Mach
Hertz

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Physics
Point A is at a lower electrical potential than point B. An electron between them on the line joining them will

Move towards B
Remain at rest
Move at right angles to the line joining A and B
Move towards A

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Physics
The period of revolution of a geostationary satellite is

24 hours
30 days
365 days
Changing continuously

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Physics
According to the quantum theory of light, the energy of light is carried in discrete units are called

Electrons
Photons
Photoelectrons
Protons

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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
25 W
Both
100 W

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Physics
Kirchhoff's laws are applicable to

None of these
C. circuits only
C. and A.C. circuits both
C. circuits only

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