WBJEE-JENPAS-UG SERIES Physics
Electromagnetic Waves
1 previous year questions.
Volume: 1 Ques
Yield: Medium
High-Yield Trend
1
2022 Chapter Questions 1 MCQs
01
PYQ 2022
medium
physics ID: wbjee-je
An electromagnetic wave of frequency 3 MHz passes from vacuum into a dielectric medium with relative permittivity & = 4. Then
1
wavelength and frequency both remain unchanged.
2
wavelength is doubled, and frequency remain unchanged.
3
wavelength is doubled, and frequency becomes half.
4
wavelength is half and frequency remain unchanged. 3 MHz