Question
Physics Question on Electromagnetic waves
An electromagnetic wave of frequency 3 MHz passes from vacuum into a dielectric medium with relative permittivity & = 4. Then
A
wavelength and frequency both remain unchanged.
B
wavelength is doubled, and frequency remain unchanged.
C
wavelength is doubled, and frequency becomes half.
D
wavelength is half and frequency remain unchanged. 3 MHz
Answer
wavelength is half and frequency remain unchanged. 3 MHz
Explanation
Solution
The correct option is (D): wavelength is half and frequency remain unchanged. 3 MHz