arrow
arrow
arrow
The angle between the direction of electric and magnetic fields of an electromagnetic wave is:
Question

The angle between the direction of electric and magnetic fields of an electromagnetic wave is:

A.

90°

B.

45°

C.

D.

180°

Correct option is A

The correct answer is: (a) 90°
Explanation:
· In an electromagnetic wave, the electric field (E) and magnetic field (B) are perpendicular to each other, and both are also perpendicular to the direction of wave propagation.
· Hence, the angle between the electric and magnetic fields is 90 degrees.
Information Booster:
· EM waves are transverse in nature.
· They do not require a medium for propagation.
· The speed of EM waves in vacuum is 3 × 10⁸ m/s.
· EM spectrum includes radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays.
· James Clerk Maxwell formulated the theory of electromagnetism.
· EM waves carry both energy and momentum.

Free Tests

Free
Must Attempt

CBT-1 Full Mock Test 1

languageIcon English
  • pdpQsnIcon100 Questions
  • pdpsheetsIcon100 Marks
  • timerIcon90 Mins
languageIcon English
Free
Must Attempt

RRB NTPC Graduate Level PYP (Held on 5 Jun 2025 S1)

languageIcon English
  • pdpQsnIcon100 Questions
  • pdpsheetsIcon100 Marks
  • timerIcon90 Mins
languageIcon English
Free
Must Attempt

CBT-1 General Awareness Section Test 1

languageIcon English
  • pdpQsnIcon40 Questions
  • pdpsheetsIcon30 Marks
  • timerIcon25 Mins
languageIcon English
test-prime-package

Access ‘RPF Constable’ Mock Tests with

  • 60000+ Mocks and Previous Year Papers
  • Unlimited Re-Attempts
  • Personalised Report Card
  • 500% Refund on Final Selection
  • Largest Community
students-icon
354k+ students have already unlocked exclusive benefits with Test Prime!
Our Plans
Monthsup-arrow