Electromagnetic Waves Questions In English Medium And Answer

Published On: 31/01/2022

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

हमलोग Electromagnetic Waves Questions In English Medium | Class 12 Physics Mcq In English के बारे स्टडी करेगे | Join Telegram For Fast Update :- Click Hare बोर्ड एग्जाम के लिए और अन्य स्टेट एग्जाम के लिए भी बहुत ही Important Objective Question पोस्ट किया गया है | आप सभी इस Objective Question को स्टडी करके अच्छे -अच्छे मार्क्स  लाने की प्रयाश करे | और इस एजुकेशन साईट के बारे में दोस्त को बतेये |

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
Show Answer

(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
Show Answer

(B) Ampere’s law

3. Choose the wave relevant to telecommunication

  • (A) ultraviolet
  • (B) infrared
  • (C) microwave
  • (D) visible light
Show Answer

(C) microwave

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
Show Answer

(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
Show Answer

(C) infrared rays

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
Show Answer

(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
Show Answer

(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
Show Answer

(C) accelerated or deccelerated charge only

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
Show Answer

(C) Modified Ampere’s law

10. Solar radiation is

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

(A) transverse EMW

11. Light year is the unit of

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

(A) distance

12. Ampere’s circuital law was modified by

  • (A) Laplace
  • (B) Gauss
  • (C) Maxwell
  • (D) Hertz
Show Answer

(C) Maxwell

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Class 12 Physics Mcq In English | Related Post

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Bihari Academy By Sarkari Exam

Electromagnetic Waves Questions In English Medium | Class 12 Physics Mcq In English
Pattern BasedBihar Board, Patna
Class12th or Inter
StreamScience
CategoryClass 12 Physics Mcq
Chapter NameElectromagnetic Waves
SubjectPhysics Class 12th
Class 12th English SummaryBSEB Class 12th English Summary
Class 10th Science All Chapter Objective Question
Click Hare
Type Of Question
Objective Question || 01 Marks
ScriptHindi And English Medium
Published OnBihari Academy

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