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A quantum of visible light is called...

A quantum of visible light is called

A

phonon

B

photon

C

phon

D

phot

Text Solution

Verified by Experts

The correct Answer is:
B
Photon is a quantum of visible light that has zero rest mass and enegry equal to the product of the frequency of the radiation and Planck's constant.
Phonon is the equantum of thermal enegry in the lattice vibrations of a crystal. Phon is a unit of loudness. phot is a unit of illumination.
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Knowledge Check

  • A quantum of light energy is called

    A
    proton
    B
    photon
    C
    electron
    D
    neutron

  • Wavelength of visible light is

    A
    200 - 400 nm
    B
    400 - 700 nm
    C
    700-900 nm
    D
    100 - 200 nm

  • Amount of oxygen evolved per quantum of light is called as

    A
    Quantum value
    B
    Quantum requirements
    C
    Quantum yield
    D
    Emerson effect

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