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Physics

Physics
Which Color has the Longest Wavelength?

Violet
Red
Yellow
White

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Physics
A machine powered by rotating blades is a

Fumerole
Solar panel
Turbines
None of these

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Physics
Which, of the following radiations has the least wavelength ?

G-rays
A-rays
X-rays
B-rays

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Physics
Speed of sound is the greatest in :

Glass
Air
Water
Glycerine

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Physics
Sound cannot pass through

Steel
Water
Vacuum
Air

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Physics
When a number of resistors are connected in series in a circuit, the value of current:

Decreases
Becomes half
Increases
Remains the same

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