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Physics

Physics
The magnitude of buoyant force depends on the ________ of the fluid.

Temperature
Mass
Density
Volume

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Physics
Which of the following pairs of physical quantities have the same dimensions?

Force and Power
Work and Power
Momentum and Power
Work and Energy

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

0.68
0.69
0.73
0.63

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Physics
The fundamental scientific principle in the operation of battery is

Dialysis
Acid-base interaction
Dissociation of electrolytes
Oxidation-reduction

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Physics
What is the wavelength of visible spectrum ?

7800 A° – 8000 A°
8500 A° – 9800 A°
1300 A°–3000 A°
3900 A° – 7600 A°

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Physics
A vacuum cleaner works on the principle of pressure difference. On the moon it will

Work as efficiently as on the earth
Not work at all
Work with reduced efficiency
Work with increased efficiency

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