Learn

Saturday, 10 October

JEE Main 2021 · PhysicsMultiple choiceSingle correctEasyApplication

JEE Main 18 March 2021, Shift 1, Physics Q14

Question 14 of 90 in this shift, Physics question 14 of 30, Section A.

The time period of a satellite in a circular orbit of radius R is T. The period of another satellite in a circular orbit of radius 9R is :
  1. (1)3 T
  2. (2)9 T
  3. (3)27 TOfficial answer
  4. (4)12 T

Official answer

Option 3

NTA final key.

Chapter
Gravitation
Topic
Orbital Mechanics
Idea tested
Kepler's Laws

Same idea in other shifts

Asked 2× in all
  1. 8 Apr 2024, Shift 1 · Q38Two planets A and B having masses m1m_1 and m2m_2 move around the sun in circular orbits of r1r_1 and r2r_2 radii respectively. If angular…HardSingle 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.