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Physics

Physics
Period of oscillation of 3 cm microwaves in seconds is

1 × 10–10
1 × 1010
0.01
0.001

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Physics
When pressure is increased the melting point of ice

Decreases
Increases
Does not change
Depends on the impurities in the ice

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Physics
Who measured the velocity of light first ?

Romer
Newton
Einstein
Galileo

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Physics
Which one of the waves have the longest wavelength

Red
Green
Blue
Violet

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Physics
What is the unit of the physical quantity Entropy?

Watt per kelvin
Newton per kelvin
Pascal per kelvin
Joule per kelvin

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Physics
Bubbles of air rise up through liquids due to

Surface tension and adherence
Up thrust and surface tension
Viscosity and buoyancy
Air current over the liquid and buoyancy

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