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Physics

Physics
Refractive Index of glass with respect to water is

44052
43924
43864
44082

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Physics
The refractive index of a transparent medium is maximum for

Red light
Green light
Violet light
Yellow light

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Physics
Why does water tank appear shallower when viewed from the top?

Due to total internal reflection
Due to reflection
Due to diffraction
Due to refraction

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Physics
Temperature of distant luminous bodies can be determined by

Mercury thermometers
Gas thermometers
Colour thermometers
Pyrometers

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Physics
Which one is the unit of surface tension of a liquid

Joule/ mm
Electron volt /cm2
Newton /m2
None of these

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Physics
A bird sitting on a high tension electric wire does not get electrocuted because

Its feet are good insulators
The body is earthed
It does not form a closed path for the flow of current
It has high resistance

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