Beta Question Bank for Medical: Physics>Chapter 29 - Electromagnetic Waves>Exercise (Conceptual Questions)>Q 18

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The speed of electromagnetic radiation in vacuum is,

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Important Questions on Electromagnetic Waves

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Beta Question Bank for Medical: Physics>Chapter 29 - Electromagnetic Waves>Exercise (Conceptual Questions)>Q 19

What is the cause of greenhouse effect ?

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Beta Question Bank for Medical: Physics>Chapter 29 - Electromagnetic Waves>Exercise (Conceptual Questions)>Q 20

The conduction current is the same as displacement current when source is

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Beta Question Bank for Medical: Physics>Chapter 29 - Electromagnetic Waves>Exercise (Conceptual Questions)>Q 21

Radiowaves of constant amplitude can be generated with

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Beta Question Bank for Medical: Physics>Chapter 29 - Electromagnetic Waves>Exercise (Conceptual Questions)>Q 22

Which of the following are not electromagnetic waves?

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Beta Question Bank for Medical: Physics>Chapter 29 - Electromagnetic Waves>Exercise (Previous Year Questions)>Q 1

For the wave propagating in the medium, identify the property which is independent of other.

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Beta Question Bank for Medical: Physics>Chapter 29 - Electromagnetic Waves>Exercise (Previous Year Questions)>Q 3

The electric field part of an electromagnetic wave in a medium is represented by

E_{x} = 0

,

E_{y} = 2.5 \frac{N}{C} \cos [(2 π {\times 10}^{6} \frac{r a d}{m}) t - (π \times 10^{- 2} \frac{r a d}{s}) x]

,

E_{z} = 0

. The wave is

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Beta Question Bank for Medical: Physics>Chapter 29 - Electromagnetic Waves>Exercise (Previous Year Questions)>Q 4

Which of the following statement is false for the properties of electromagnetic waves?

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Beta Question Bank for Medical: Physics>Chapter 29 - Electromagnetic Waves>Exercise (Previous Year Questions)>Q 5

The electric and the magnetic field associated with an E.M. wave, propagation along the

+ z

-axis, can be represented by