Gamma Question Bank for Medical Physics>Chapter 23 - Electromagnetic Waves>Assignment>Q 12

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Velocity of electromagnetic waves in a medium is

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Important Questions on Electromagnetic Waves

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Gamma Question Bank for Medical Physics>Chapter 23 - Electromagnetic Waves>Assignment>Q 15

Which of the following is incorrect about a plane electromagnetic wave?

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Gamma Question Bank for Medical Physics>Chapter 23 - Electromagnetic Waves>Assignment>Q 16

In a plane electromagnetic wave, which of the following has/have zero average value in one complete cycle?

$(a)$ Magnetic field

$(b)$ Magnetic energy

$(c)$ Electric field

$(d)$ Electric energy

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Gamma Question Bank for Medical Physics>Chapter 23 - Electromagnetic Waves>Assignment>Q 17

An electromagnetic wave is propagating in vacuum along

z -

axis, the electric field component is given by

E_{x} = E_{0} \sin (k z - ω t),

then magnetic component is

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Gamma Question Bank for Medical Physics>Chapter 23 - Electromagnetic Waves>Assignment>Q 19

Which of the following has the largest wavelength?

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Gamma Question Bank for Medical Physics>Chapter 23 - Electromagnetic Waves>Assignment>Q 20

The magnetic field in a plane electromagnetic wave is given by

B = 2 \times 10^{- 7} \sin (0.5 \times 10^{3} x + 1.5 \times 10^{11} t) T

. This electromagnetic wave is

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Gamma Question Bank for Medical Physics>Chapter 23 - Electromagnetic Waves>Assignment>Q 21

Which of the following represents an infra-red wavelength?

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Gamma Question Bank for Medical Physics>Chapter 23 - Electromagnetic Waves>Assignment>Q 22

Ozone layer blocks the radiation of wavelength

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Gamma Question Bank for Medical Physics>Chapter 23 - Electromagnetic Waves>Assignment>Q 23

Which of the following can be used in cancer treatment?