πŸ“Š Science
Q. An electromagnetic wave of frequency v = 3.0 MHz passes from vacum into a dielectric medium with permittivity ε = 4.0 Then :
  • (A) Wavelength is doubled and frequency unchanged
  • (B) Wavelength is doubled and frequency becomes half
  • (C) Wavelength is halved and frequency remains unchanged
  • (D) Wavelength and frequency both remain unchanged
βœ… Correct Answer: (C) Wavelength is halved and frequency remains unchanged

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