Q. When a plane electromagnetic wave enters a glass slab, then which of the following will not change?
A) Wavelength
B) Frequency
C) Speed
D) Amplitude
Explanation
The correct answer is Option B: Frequency.
A detailed explanation for this question is being prepared.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.