Chapter 11: Dual Nature of Radiation and Matter MCQs | physics Class 12 CBSE

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Chapter 11: Dual Nature of Radiation and Matter MCQs | physics Class 12 CBSE | ByteNotes.in

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Question 1

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The minimum energy required by an electron to escape from the surface of a metal is called:

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Question 2

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One electron volt is equal to:

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Question 3

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In the photoelectric effect, the maximum kinetic energy of the emitted photoelectrons depends on:

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Question 4

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The stopping potential in the photoelectric effect is independent of:

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Question 5

Objective

Which of the following correctly states Einstein's photoelectric equation?

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Question 6

Objective

The threshold frequency ν₀ for a metal with work function φ₀ is given by:

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Question 7

Objective

Photoelectric emission was first discovered by:

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Question 8

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Which of the following metals is sensitive to visible light for photoelectric emission?

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Question 9

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When the intensity of incident light is doubled (keeping frequency constant) in a photoelectric experiment, the saturation current:

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Question 10

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The slope of the stopping potential versus frequency graph in a photoelectric experiment is equal to:

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Question 11

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In Einstein's photon model, increasing the intensity of monochromatic light increases:

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Question 12

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The de Broglie wavelength of a particle of mass m moving with speed v is:

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Question 13

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If the accelerating potential of electrons in a de Broglie experiment is increased four times, the de Broglie wavelength:

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Question 14

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The presently accepted value of the specific charge (e/m) of the electron is:

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Question 15

Objective

According to the photon picture of light, photons are:

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Question 16

Objective

The maximum kinetic energy of photoelectrons is related to the stopping potential V₀ by:

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Question 17

Objective

The wave theory of light fails to explain the photoelectric effect because it cannot account for:

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Question 18

Objective

In a photoelectric experiment, when the frequency of incident radiation is doubled (and intensity kept constant), the stopping potential:

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Question 19

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De Broglie proposed that moving particles of matter should display wave-like properties. He was awarded the Nobel Prize in Physics in:

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Question 20

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The photoelectric effect confirms the particle nature of light because:

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Chapter 11: Dual Nature of Radiation and Matter | MCQs

The minimum energy required by an electron to escape from the surface of a metal is called:

One electron volt is equal to:

In the photoelectric effect, the maximum kinetic energy of the emitted photoelectrons depends on:

The stopping potential in the photoelectric effect is independent of:

Which of the following correctly states Einstein's photoelectric equation?

The threshold frequency ν₀ for a metal with work function φ₀ is given by:

Photoelectric emission was first discovered by:

Which of the following metals is sensitive to visible light for photoelectric emission?

When the intensity of incident light is doubled (keeping frequency constant) in a photoelectric experiment, the saturation current:

The slope of the stopping potential versus frequency graph in a photoelectric experiment is equal to:

In Einstein's photon model, increasing the intensity of monochromatic light increases:

The de Broglie wavelength of a particle of mass m moving with speed v is:

If the accelerating potential of electrons in a de Broglie experiment is increased four times, the de Broglie wavelength:

The presently accepted value of the specific charge (e/m) of the electron is:

According to the photon picture of light, photons are:

The maximum kinetic energy of photoelectrons is related to the stopping potential V₀ by:

The wave theory of light fails to explain the photoelectric effect because it cannot account for:

In a photoelectric experiment, when the frequency of incident radiation is doubled (and intensity kept constant), the stopping potential:

De Broglie proposed that moving particles of matter should display wave-like properties. He was awarded the Nobel Prize in Physics in:

The photoelectric effect confirms the particle nature of light because:

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