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Physics

Physics
Minimum number of unequal vectors which can give zero resultant are

four
two
more than four
three

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Physics
Infrasonic sound has a frequency lower than

20 Hz
32 Hz
5 Hz
15 Hz

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Physics
Light from Sun reaches Earth in approximately

10 minutes
12 minutes
8 minutes
3 minutes

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Physics
Moment of inertia is:

Phasor
Vector
Scalar
Tensor

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Physics
The alluminating powers of two sources are compared by

A fluxmeter
A spectrometer
A photometer
A polarimeter

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Physics
A parallel-plate capacitor,with air in between the plates, has capacitance C. Now the space between the two plates of the capacitor is filled with a dielectric of dielectric constant 7. Then the value of the capacitance will become

7C
14C
C
C/7

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