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Saturday, 31 October

JEE Main 2021 · PhysicsMultiple choiceSingle correctEasyConceptual

JEE Main 18 March 2021, Shift 2, Physics Q19

Question 19 of 90 in this shift, Physics question 19 of 30, Section A.

A plane electromagnetic wave propagating along yy-direction can have the following pair of electric field (E⃗\vec{E}) and magnetic field (B⃗\vec{B}) components.
  1. (1)EyE_y, ByB_y or EzE_z, BzB_z
  2. (2)ExE_x, ByB_y or EyE_y, BxB_x
  3. (3)ExE_x, BzB_z or EzE_z, BxB_xOfficial answer
  4. (4)EyE_y, BxB_x or ExE_x, ByB_y

Official answer

Option 3

NTA final key.

Chapter
Electromagnetic Waves
Topic
No close match in our taxonomy
Idea tested
No close match in our taxonomy

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.