JEE Main 2023 · PhysicsMultiple choiceSingle correctEasyApplication

JEE Main 10 April 2023, Shift 1, Physics Q34

Question 34 of 90 in this shift, Physics question 4 of 30, Section A.

Two satellites of masses

m

and

3m

revolve around the earth in circular orbits of radii

r

3\,r

respectively. The ratio of orbital speeds of the satellites respectively is

(1) $1:1$
(2) $\sqrt{3}:1$ Official answer
(3) $9:1$
(4) $3:1$

Official answer

Option 2

NTA final key.

Chapter: Gravitation
Topic: Orbital Mechanics
Idea tested: Orbital Velocity

Same idea in other shifts

Asked 6× in all

8 Apr 2024, Shift 2 · Q36Two satellite A and B go round a planet in circular orbits having radii 4R and R respectively. If the speed of A is $3v$ , the speed of B…EasySingle correct
12 Apr 2023, Shift 1 · Q31Two satellites A and B move round the earth in the same orbit. The mass of A is twice the mass of B. The quantity which is same for the…EasySingle correct
25 Jun 2022, Shift 2 · Q55Two satellites $S_1$ and $S_2$ are revolving in circular orbits around a planet with radius $R_1$ = 3200 km and $R_2$ = 800 km respectively.…EasyNumerical value
18 Mar 2021, Shift 2 · Q3A particle of mass m moves in a circular orbit under the central potential field, $U(r) = -\frac{C}{r}$ , where C is a positive constant.…MediumDiagram basedHas a figure
4 Sep 2020, Shift 2 · Q6A body is moving in a low circular orbit about a planet of mass M and radius R. The radius of the orbit can be taken to be R itself. Then…EasySingle 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 108 of the 174 JEE Main shifts held from 2017 to 2026.