Quiz about Photon

Question 1

This process promotes the molecule from the S₀to one of the vibration levels of the singlet excited states (S₁, S₂,..)

Accepted Answer

Absorption of photon

Answer

Emission of photon

Answer

Fluorescence

Answer

Vibrational relaxation

Question 2

Eventually these discreet packets got called ____ because of Einstein's work.

Accepted Answer

photons

Answer

particles

Answer

blackbodies

Answer

quanta

Question 3

What is the equation for Planck's Law?

Accepted Answer

Energy of a photon = Planck's constant * frequency of light

Answer

Energy of a photon = Planck's constant / frequency of light

Answer

Energy of a photon * Planck's constant = frequency of light

Answer

Energy of a photon = Planck's constant = frequency of light

Question 4

Gamma rays, X-rays, visible light, and radio waves are all types of ________.

Accepted Answer

Electromagnetic radiation

Answer

Nuclear energy

Answer

Chromatic aberration

Answer

Ultraviolet radiation

Question 5

What is the equation for the energy of the photon for particle theory?

Accepted Answer

energy of photon = work function / maximum kinetic energy

Answer

energy of photon = work function = maximum kinetic energy

Answer

energy of photon * work function = maximum kinetic energy

Answer

energy of photon = work function * maximum kinetic energy

Question 6

What term describes how in some circumstances light can behave like a particle and other circumstances it can behave like a wave?

Accepted Answer

wave-particle duality

Answer

particle-wave schima

Answer

Planck's particle dual behavior

Answer

particle-wave behavior principle

Question 7

Light is both a(n) _____ and a wave.

Accepted Answer

particle

Answer

energy

Answer

effect

Answer

principle

Question 8

When light hits a metal plate and electrons leave the plate creating a current, this is called the ______.

Accepted Answer

photoelectric effect

Answer

particle effect

Answer

light and particle effect

Answer

photoparticle effect

Question 9

The energy of an emitted photon can be calculated from ...

Accepted Answer

all of the above

Answer

Plancks constant x frequency of the photon

Answer

h x c / wavelength of the light emitted

Answer

the difference in the energy levels

Question 10

Photoelectrons will be ejected from a material surface if?

Accepted Answer

The work function is less than the photon energy

Answer

The threshold frequency is greater than the photon frequency

Answer

The intensity of light is high enough

Answer

The wavelength of photon is maximum

Question 11

A monochromatic light beam with a quantum energy of 9.0 eV is incident upon a photocell. The work function of the photocell is 4.1 eV. What is the maximum kinetic energy of the electron.

Accepted Answer

4.9 eV

Answer

4.2 eV

Answer

4.4 eV

Answer

4.7 eV

Question 12

In an experiment, photoelectric effect is observed in metal A when light with frequency (f ) falls on the metal. If the light frequency used in this experiment is doubled, the photoelectrons

Accepted Answer

Will be ejected with greater kinetic energy

Answer

Will not be ejected

Answer

Will be ejected as observed in the previous

Answer

Will be ejected with greater number of photoelectrons

Question 13

What is a photon?

Accepted Answer

A particle of light

Answer

A wave of sound

Answer

A molecule of water

Answer

A unit of temperature

Question 14

Which scientist is credited with the concept of photons?

Accepted Answer

Albert Einstein

Answer

Isaac Newton

Answer

Niels Bohr

Answer

Galileo Galilei

Question 15

What is the energy of a photon related to?

Accepted Answer

Its frequency

Answer

Its mass

Answer

Its volume

Answer

Its speed

Question 16

What is the equation for the energy of a photon?

Accepted Answer

$$E = hf$$

Answer

$$E = mc^2$$

Answer

$$E = mv^2$$

Answer

$$E = kT$$

Question 17

In the photoelectric effect, what happens when light shines on a metal surface?

Accepted Answer

Electrons are emitted

Answer

Protons are absorbed

Answer

Neutrons are released

Answer

Atoms are split

Question 18

What is the term for the dual nature of light, behaving as both a wave and a particle?

Accepted Answer

Wave-particle duality

Answer

Quantum entanglement

Answer

Relativity

Answer

Uncertainty principle

Question 19

Which of the following is a property of photons?

Accepted Answer

They travel at the speed of light

Answer

They have mass

Answer

They are negatively charged

Answer

They are made of atoms

Question 20

What is the role of photons in photosynthesis?

Accepted Answer

They provide energy for the reaction

Answer

They are absorbed by chlorophyll

Answer

They are converted into glucose

Answer

They are emitted as waste

Question 21

How does the frequency of a photon relate to its energy?

Accepted Answer

Higher frequency means higher energy

Answer

Higher frequency means lower energy

Answer

Frequency does not affect energy

Answer

Frequency is inversely proportional to energy

Question 22

What happens to the energy of a photon as its wavelength increases?

Accepted Answer

Energy decreases

Answer

Energy increases

Answer

Energy remains constant

Answer

Energy becomes zero

Question 23

Which of the following phenomena can be explained by the particle nature of light?

Accepted Answer

Photoelectric effect

Answer

Diffraction

Answer

Interference

Answer

Refraction

Question 24

What is the significance of Planck's constant in photon energy calculations?

Accepted Answer

It relates energy to frequency

Answer

It determines the speed of light

Answer

It measures the mass of a photon

Answer

It defines the charge of a photon

Photon

Create a free account and access millions of resources

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Science