Question
Two planets A and B of radii R and 1.5 R have densities and / 2 respectively. The ratio of acceleration due to gravity at the surface of B to A is :
BITSAT
Physics
Gravitation
2023
BITSAT 2023 (Memory Based Paper 1)
BITSAT Physics Question (2023) — Solution
Options
- A. 2: 3
- B. 2: 1
- C. 3: 4
- D. 4: 3
Answer
C. 3: 4
Step-by-step solution
Acceleration due to gravity, g = GM R ^2 = 4 3 G R g_2 g_1 = _2 _1 R_2 R_1 = 1 2 1.5= 3 4
Related: Physics — Gravitation · All PYQ Banks