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Saturday, 31 October

JEE Main 2020 · PhysicsMultiple choiceSingle correctMediumConceptual

JEE Main 4 September 2020, Shift 1, Physics Q9

Question 9 of 75 in this shift, Physics question 9 of 25.

For a transverse wave travelling along a straight line, the distance between two peaks (crests) is 5 m, while the distance between one crest and one trough is 1.5 m. The possible wavelengths (in m) of the waves are :
  1. (1)1,2,3,.....1, 2, 3, .....
  2. (2)1,3,5,.....1, 3, 5, .....
  3. (3)11,13,15,.....\frac{1}{1}, \frac{1}{3}, \frac{1}{5}, .....Official answer
  4. (4)12,14,16,.....\frac{1}{2}, \frac{1}{4}, \frac{1}{6}, .....

Official answer

Option 3

NTA final key (Sep 2020).

Chapter
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.