Quiz about Dual Nature of Light

Question 1

In photoelectric effect, which condition will produce a greater flow of electrons (photoelectric current)?

Accepted Answer

bright light

Answer

dim light

Answer

reflected light

Answer

refracted light

Question 2

Which of the following devices operates under the principle of photoelectric effect?

Accepted Answer

solar panels

Answer

voltaic cells

Answer

transistors

Answer

vacuum tubes

Question 3

The energy of photoelectrons emitted from a metal surface can be increased by ___________________________.

Accepted Answer

using light of higher frequency.

Answer

using light of longer wavelength.

Answer

using light of higher intensity.

Answer

using monochromatic, polarized light.

Question 4

This image is an illustration of

Accepted Answer

photoelectric effect

Answer

diffraction effect

Answer

particle interference effect

Answer

wave interference effect

Question 5

Refraction of light is evidence that ___________.

Accepted Answer

light is both a particle and a wave

Answer

the nature of light is unknown

Answer

light is a particle phenomenon

Answer

light is a wave phenomenon

Question 6

Interference of light is evidence that ___________.

Accepted Answer

light is a wave phenomenon

Answer

the nature of light is unknown

Answer

light is both a particle and a wave

Answer

light is a particle phenomenon

Question 7

Which experiment demonstrated the wave nature of light?

Accepted Answer

Young's double-slit experiment

Answer

Rutherford's gold foil experiment

Answer

Millikan's oil drop experiment

Answer

Cavendish experiment

Question 8

What phenomenon demonstrates the particle nature of light?

Accepted Answer

Photoelectric effect

Answer

Diffraction

Answer

Interference

Answer

Polarization

Question 9

Which scientist is credited with the theory of wave-particle duality?

Accepted Answer

Louis de Broglie

Answer

Albert Einstein

Answer

Niels Bohr

Answer

Isaac Newton

Question 10

In the photoelectric effect, what happens when light of a higher frequency is used?

Accepted Answer

Electrons are emitted with more energy

Answer

More electrons are emitted

Answer

Fewer electrons are emitted

Answer

Electrons are emitted with less energy

Question 11

What is the term for the minimum energy required to remove an electron from a metal surface?

Accepted Answer

Work function

Answer

Threshold frequency

Answer

Ionization energy

Answer

Binding energy

Question 12

Which of the following is a real-world application of the photoelectric effect?

Accepted Answer

Digital cameras

Answer

Microscopes

Answer

Telescopes

Answer

Spectrometers

Question 13

What is the effect of increasing the intensity of light in the photoelectric effect?

Accepted Answer

Increases the number of emitted electrons

Answer

Increases the energy of emitted electrons

Answer

Decreases the number of emitted electrons

Answer

Decreases the energy of emitted electrons

Question 14

Which equation represents the energy of a photon?

Accepted Answer

$$E = hf$$

Answer

$$E = mc^2$$

Answer

$$E = mv^2$$

Answer

$$E = \frac{1}{2}mv^2$$

Question 15

What is the significance of the Compton effect in understanding light?

Accepted Answer

It shows light has particle properties

Answer

It shows light has wave properties

Answer

It shows light has both wave and particle properties

Answer

It shows light has no mass

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