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Saturday, 31 October

JEE Main 2022 · PhysicsMultiple choiceSingle correctMediumCalculation

JEE Main 26 July 2022, Shift 2, Physics Q38

Question 38 of 90 in this shift, Physics question 8 of 30, Section A.

A body is projected vertically upwards from the surface of earth with a velocity equal to one third of escape velocity. The maximum height attained by the body will be : (Take radius of earth = 6400 km and g=10 ms−2g=10\ ms^{-2} )
  1. (1)800 kmOfficial answer
  2. (2)1600 km
  3. (3)2133 km
  4. (4)4800 km

Official answer

Option 1

NTA final key.

Chapter
Gravitation
Topic
Gravitational Potential
Idea tested
Maximum Height Using Exact Potential

Same idea in other shifts

Asked 2× in all
  1. 25 Feb 2021, Shift 2 · Q22The initial velocity viv_i required to project a body vertically upward from the surface of the earth to reach a height of 10R, where R is…MediumNumerical 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.