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When the intensity of a light source is ...

When the intensity of a light source is increased
(a) the number of photons emitted by the source in unit time increases
(b) the total energy of the photons emitted per unit time increases
(c) more energetic photons are emitted
(d) faster photons are emitted

A

the number of photons emitted by the source in unit time increases

B

the total energy of the photons emitted per unit time increases

C

more energetic photons are emitted

D

faster photons are emitted

Text Solution

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The correct Answer is:
A, B
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Knowledge Check

  • In (Q.18)problem, the minimum number of photons emitted by the H-atom is

    A
    `1`
    B
    `2`
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    `3`
    D
    `4`

  • High energy photons, emited in nuclear reorganisation, are called

    A
    `alpha`-rays
    B
    `beta`-rays
    C
    `gamma`-rays
    D
    X-rays

  • Energy of an emitted photon with wavelength 620 nm is :

    A
    `1 eV`
    B
    `2 eV`
    C
    `1.5 eV`
    D
    `2.5 eV`

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