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Friday, 9 October

JEE Main 2026 · PhysicsNumerical answerNumerical valueMediumMulti-step

JEE Main 6 April 2026, Shift 2, Physics Q46

Question 46 of 75 in this shift, Physics question 21 of 25, Section B.

A block takes tt time to slide down a plane inclined at 45∘45^\circ to the horizontal. If the surface is made smooth (frictionless), the block takes time t2\frac{t}{2} to slide down the plane. The coefficient of friction between the block and the inclined plane is (α100)\left(\frac{\alpha}{100}\right). The value of α\alpha is __________.

Official answer

75

NTA final key.

Chapter
Laws of Motion
Topic
Friction
Idea tested
Motion Down a Rough Incline

Same idea in other shifts

Asked 2× in all
  1. 4 Apr 2026, Shift 1 · Q28The time taken by a block of mass mm to slide down from the highest point to the lowest point on a rough inclined plane is 50 %50\ \% more…MediumSingle correct

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 42 of the 174 JEE Main shifts held from 2017 to 2026.