STANDARDPhysics-Electromagnetic Waves
STANDARD Physics Properties of Electromagnetic Waves MCQ Question
Type: MCQ-conceptual-Easy-Class 12
X-rays, gamma rays and microwaves travelling in vacuum have
A
same wavelength but different velocities
B
same frequency but different velocities
C
same velocity but different wavelengths
D
same velocity and same frequency
Correct Answer
Option C
Detailed Explanation
In vacuum, X-rays, gamma rays, and microwaves travel with the same velocity, i.e., with the velocity of light (c = 3 × 10⁸ m s⁻¹) but have different wavelengths.
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