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Saturday, 31 October

JEE Main 2022 · PhysicsMultiple choiceSingle correctMediumApplication

JEE Main 27 June 2022, Shift 1, Physics Q32

Question 32 of 90 in this shift, Physics question 2 of 30, Section A.

A girl standing on road holds her umbrella at 45∘45^\circ with the vertical to keep the rain away. If she starts running without umbrella with a speed of 152 kmh−115\sqrt{2}\ \mathrm{kmh^{-1}}, the rain drops hit her head vertically. The speed of rain drops with respect to the moving girl is :
  1. (1)30 kmh−130\ \mathrm{kmh^{-1}}
  2. (2)252 kmh−1\frac{25}{\sqrt{2}}\ \mathrm{kmh^{-1}}
  3. (3)302 kmh−1\frac{30}{\sqrt{2}}\ \mathrm{kmh^{-1}}Official answer
  4. (4)25 kmh−125\ \mathrm{kmh^{-1}}

Official answer

Option 3

NTA final key.

Chapter
Motion in a Plane
Topic
Relative Velocity
Idea tested
Rain-Man Problems

Same topic in other shifts

All Relative Velocity questions
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  5. 13 Apr 2023, Shift 2 · Q33A passenger sitting in a train A moving at 9090 km/h observes another train B moving in the opposite direction for 8 s. If the velocity of…EasySingle correct
  6. 3 Aug 2021, Shift 1 · Q26Two particles having position vectors r1⃗=(2i⃗+3j⃗)m\vec{r_1} = \left(2\vec{i} + 3\vec{j}\right) m and…EasyNumerical value

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.