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Physics

Physics
At the center of the sun, fusion converts hydrogen into

Plutonium
Water
Helium
Carbon

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Physics
A light ray travelling from denser to rarer medium at an angle of incidence more than critical angle of concerned media pair suffers.

Reflection
Diffraction
Total internal reflection
Refraction

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Physics
Heat transfer by conduction occurs when molecules

None of these
Combine
Heated
Collide

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Physics
Ohm's law is valid in case of

Conductor
Semiconductor
Insulator
Superconductor

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Physics
Which one of the following wavelengths of light is most effective in photosynthesis ?

Yellow
Orange
Green
Blue

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Physics
Alcohol is more volatile than water because ________ is lower than water.

Its viscosity
Its surface tension
Its boiling point
Its density

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