Electromagnetic Waves Questions In English

Electromagnetic Waves Questions In English Medium | Class 12 Physics Mcq In English | Electromagnetic waves questions in english with answers | Electromagnetic waves Important questions Class 12

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Electromagnetic Waves Questions In English

1. The dimensional formula of E is

(A) [MLT^-2A^-1]
(B) [MLT^-3A^-1]
(C) [MLT^-2A^-2]
(D) None

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(B) [MLT^-3A^-1]

2. Which of the following laws was modified by Maxwell by introducing the displacement current ?

(A) Gauss’s law
(B) Ampere’s law
(C) Biot-Savart’s law
(D) None

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(B) Ampere’s law

3. Choose the wave relevant to telecommunication

(A) ultraviolet
(B) infrared
(C) microwave
(D) visible light

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4. Electromagnetic waves have a speed of –

(A) 3 x 10⁵ km s^-1
(B) 3 x 10⁶ km s^-1
(C) 3 x 10⁷ km s^-1
(D) 3 x 10⁸ km s^-1

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(A) 3 x 10⁵ km s^-1

5. Which of the following EMW has highest wavelength ?

(A) X-ray
(B) ultraviolet rays
(C) infrared rays
(D) microwaves

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6. Displacement current is due to

(A) the flow of electrons
(B) the Varying electric field
(C) the ionization of atmosphere
(D) the flow of protons

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(B) the Varying electric field

7. Displacement current is always

(A) equal to conduction current
(B) less than conduction current
(C) greater than conduction current
(D) the sum of current due to flow of positive and negative ions

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(A) equal to conduction current

8. EMW are produced by

(A) charge in uniform motion only
(B) at rest only
(C) accelerated or deccelerated charge only
(D) all of the above

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9. Name the law which states that a varying electric field produces a magnetic field

(A) Biot-Savart’s law
(B) Faraday’s law
(C) Modified Ampere’s law
(D) none

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10. Solar radiation is

(A) transverse EMW
(B) longitudinal EMW
(C) both (A) and (B)
(D) None

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(A) transverse EMW

11. Light year is the unit of

(A) distance
(B) time
(C) energy
(D) intensity of light

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(A) distance

12. Ampere’s circuital law was modified by

(A) Laplace
(B) Gauss
(C) Maxwell
(D) Hertz

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Class 12 Physics Mcq In English | Related Post

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Electromagnetic Waves Questions In English Medium | Class 12 Physics Mcq In English

Pattern Based	Bihar Board, Patna
Class	12^thor Inter
Stream	Science
Category	Class 12 Physics Mcq
Chapter Name	Electromagnetic Waves
Subject	Physics Class 12th
Class 12^th English Summary	BSEB Class 12th English Summary
Class 10^th Science All Chapter Objective Question	Click Hare
Type Of Question	Objective Question \|\| 01 Marks
Script	Hindi And English Medium
Published On	Bihari Academy