CUET · PHYSICS · PYQ PAPER 2025
An electromagnetic wave moves in vacuum. Its speed is c. Choose the correct options about the characteristics of electromagnetic waves:
(A) \( c = \frac{1}{\sqrt{\mu_0 \epsilon_0}} \)
(B) Electromagnetic waves are transverse in nature.
(C) Both the electric field and magnetic field vibrate perpendicular to the direction of propagation of waves
(D) Electromagnetic waves are longitudinal in nature.
Choose the correct answer from the options given below:
- A (A), (B) and (C) only
- B (A), (C) and (D) only
- C (C) and (D) only
- D (A) and (B) only
Answer & Solution
Correct Answer
(A) (A), (B) and (C) only
Step-by-step Solution
Detailed explanation
The speed of light in vacuum is defined by \(c=\frac{1}{\sqrt{\mu 0 \epsilon_0}}\). EM waves are transverse because the electric and magnetic field vectors oscillate perpendicular to each other and to the direction of wave propagation, making statement (D) incorrect. A) (A), (B)…
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