Physics Circle home Student Login

Home›Chapters›Gravitation PYQs›Satellites - Orbital Velocity & Period›Question 30

JEE Main 2023 (10 Apr, Shift 1) · Satellites - Orbital Velocity & Period

Satellites - Orbital Velocity & Period question from JEE Main 2023 (10 Apr, Shift 1)

Q30JEE Main 2023 · 10 APR · SHIFT 1Easy

Satellites - Orbital Velocity & Period

Two satellites of masses m and 3m revolve around the earth in circular orbits of radii r & 3r respectively. The ratio of orbital speeds of the satellites respectively is

Show answer and solution

Answer: (b)

  1. Orbital speed v=GMrv = \sqrt{\frac{GM}{r}}, independent of satellite mass.
  2. v1v2=3rr=3\frac{v_1}{v_2} = \sqrt{\frac{3r}{r}} = \sqrt{3}
  3. So the answer is (b) 3:1\sqrt{3}:1.
Report a mistake

More questions on Satellites - Orbital Velocity & Period