The speed of electromagnetic waves in a specific material medium depends upon:

Match List I (Electromagnetic wave) with List II (Production method): List I: A. Microwave B. Visible light C. Gamma rays D. Infrared rays List II: I. Electrons in atoms emit light when moving from a higher to a lower energy level II. Radioactive decay of the nucleus III. Vibration of atoms and molecules IV. Klystron valve or magnetron valve Choose the correct matching:

For a plane electromagnetic wave propagating along the +x-direction, which of the following combinations gives the correct possible directions for the electric field (E) and magnetic field (B) respectively?

When light propagates through a material medium of relative permittivity εr and relative permeability μr, the speed of light v is given by (where c is the speed of light in vacuum):

Which one of the following types of electromagnetic radiations has the smallest wavelength?

Consider the following statements regarding electromagnetic waves propagating in a vacuum: I. Electric and magnetic field vectors oscillate perpendicular to each other and to the direction of wave propagation. II. Electromagnetic waves require a material medium for propagation. III. Electromagnetic waves carry energy and momentum. Which of the statements given above are correct?

Arrange the following electromagnetic radiations in decreasing order of their frequencies: (i) Infra-red radiation (ii) Microwave radiation (iii) Ultra-violet radiation

Which of the following rays are absorbed by the ozone layer present in the atmosphere?

The intrinsic impedance (η) of a medium is given by: