Modern Physics -Multiple Choice Questions Quiz

Interactive MCQs on “Modern Physics”:

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: Which of the following is a fundamental concept of modern physics that states that the laws of physics are the same for all observers, regardless of their relative motion?

(a) Quantum mechanics
(b) Theory of relativity
(c) Newton's laws of motion
(d) Classical mechanics

Question 2: Which phenomenon in modern physics suggests that particles can exhibit both wave-like and particle-like behavior?

(a) Blackbody radiation
(b) Photoelectric effect
(c) Quantum tunneling
(d) Wave-particle duality

Question 3: The photoelectric effect provided crucial evidence for the understanding of:

(a) Wave-particle duality
(b) General relativity
(c) Quantum tunneling
(d) The Heisenberg uncertainty principle

Question 4: Which branch of modern physics deals with the study of the behavior of very small particles, such as atoms and subatomic particles?

(a) Quantum mechanics
(b) Electrodynamics
(c) Classical mechanics
(d) Thermodynamics

Question 5: Which equation, proposed by Albert Einstein, relates the energy (E) of a particle to its mass (m) and the speed of light (c)?

(a) E = mc^2
(b) F = ma
(c) E = mv^2
(d) F = Gm1m2/r^2

Question 6: What phenomenon, based on the theory of relativity, describes how time appears to move slower for an object moving at high speeds relative to an observer?

(a) Time dilation
(b) Length contraction
(c) Quantum entanglement
(d) Redshift

Question 7: What is the term for the minimum amount of energy that can be gained or lost by an atom or particle?

(a) Photons
(b) Quanta
(c) Quantum
(d) Plank units

Question 8: The uncertainty principle in quantum mechanics, proposed by Werner Heisenberg, states that there is an inherent limit to simultaneously knowing the exact values of which two properties of a particle?

(a) Mass and velocity
(b) Charge and spin
(c) Position and momentum
(d) Energy and wavelength

Question 9: Which effect in quantum mechanics describes the phenomenon where particles can tunnel through potential energy barriers despite lacking sufficient energy to overcome them classically?

(a) Photoelectric effect
(b) Quantum tunneling
(c) Doppler effect
(d) Compton effect

Question 10: Which term describes the redshift of light from distant galaxies due to the expansion of the universe, providing evidence for the Big Bang theory?

(a) Photoelectric effect
(b) Quantum entanglement
(c) Cosmic microwave background radiation
(d) Hubble redshift