Photon -Multiple Choice Questions Quiz

Interactive MCQs on “Photon”:

Solve the following 10 questions. Only one option is correct. Click on the “Submit” button when done. Click on the “embed” button to use this quiz on your website. Click on “WhatsApp” to share this quiz.

Question 1: What is a photon?

(a) A subatomic particle with a positive charge
(b) A subatomic particle with a negative charge
(c) A packet of electromagnetic energy
(d) A particle found in the nucleus of an atom

Question 2: What is the energy of a photon proportional to?

(a) Its frequency
(b) Its wavelength
(c) Its speed
(d) Its amplitude

Question 3: What is the speed of a photon in a vacuum?

(a) 3 × 10^8 meters per second
(b) 9.8 meters per second
(c) 1 meter per second
(d) 0 meters per second

Question 4: What happens when a photon is absorbed by an atom?

(a) The atom gains energy and emits another photon
(b) The atom loses energy and becomes ionized
(c) The photon disappears and is no longer detectable
(d) The photon changes its speed but remains intact

Question 5: What is the particle-like behavior of a photon known as?

(a) Wave-particle duality
(b) Quantum entanglement
(c) Particle-wave coherence
(d) Photon scattering

Question 6: Which phenomenon demonstrates the wave nature of photons?

(a) Diffraction
(b) Photoelectric effect
(c) Compton scattering
(d) Quantum tunneling

Question 7: What is the minimum energy of a photon required to eject an electron in the photoelectric effect?

(a) Planck's constant
(b) Photon energy
(c) Threshold energy
(d) Binding energy

Question 8: What happens to the energy of a photon when it undergoes Compton scattering?

(a) It remains the same
(b) It increases
(c) It decreases
(d) It becomes zero

Question 9: What is the name of the process where two photons combine to form a single photon with higher energy?

(a) Photon scattering
(b) Photon emission
(c) Photon absorption
(d) Photon fusion

Question 10: What is the fundamental unit of light intensity, defined as the number of photons passing through a point per unit time?

(a) Flux
(b) Radiance
(c) Luminance
(d) Photon flux density