Physics
According to the quantum theory of light, the energy of light is carried in discrete units are called

Electrons
Protons
Photoelectrons
Photons

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Physics
Indicate the false statement about the resistance of a wire

Resistance of metallic wire increases with increase in temperature
It is directly proportional to the area of cross-section of wire
It is directly proportional to the length of wire
It depends on material of wire

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