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Physics

Physics
Atomic packing factor of body centred cubic structure (bcc) is

0.63
0.68
0.69
0.73

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Physics
In AC circuits, AC meters measure

Mean values
Peak values
Rms values
Mean square values

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

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Physics
Friction is caused by the ________ on the two surfaces in contact.

Gaps
Smoothness
Irregularities
Densities

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Physics
The strength of an electromagnet can be increased by

Increasing the length of the coiled wire
Increasing current supply
Increasing the number of turns
All of these

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Physics
Which is a correct way to measure wavelength?

Nearest trough to peak
Nearest peak to peak
None of these
Nearest peak to nearest trough

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