Two planets have radii `r_(1) and 2r_(1)` and densities are `rho_(1) and 4rho_(1)` respectively. The ratio of their acceleration due to gravities is

Question

Two planets have radii `r_(1) and 2r_(1)` and densities are `rho_(1) and 4rho_(1)` respectively. The ratio of their acceleration due to gravities is

Two planets have radii `r_(1) and 2r_(1)` and densities are `rho_(1) and 4rho_(1)` respectively. The ratio of their acceleration due to gravities is
A. `1:8`
B. `8:1`
C. `4:1`
D. `1:4`

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

Related Questions

The ratio of the radii of the planets `P_(1)` and `P_(2)` is a the ratio of their acceleraton due to gravity is b the ratio of the escape velocity for

2 Answers 4 Views

The masses of two planets are in the ratio `1 : 2`. Their radii are in the ratio `1 : 2`. The acceleration due to gravity on the planets are in the ra

2 Answers 6 Views

Two planets are of the same material but their radii are in the ratio `2:1`. Then ratio of accelerations due to gravity on those two planets is

2 Answers 4 Views

Weight of a body on the surfaces of two planets is the same. If their densities are `d_(1) and d_(2)`, then ratio of their radii is

2 Answers 5 Views

The densities of two planets are in the ratio of 2 : 3 and their radii are in the ratio of 1 : 2. What is the ratio of acceleration due to gravity at

2 Answers 5 Views

Two circular disc of same mass and thickness are made from metals having densities `rho_(1)` and `rho_(2)` respectively. The ratio of their moment of

2 Answers 4 Views

Two circular discs A and B have equal masses and uniform thickness but have densities `rho_(1)` and `rho_(2)` such that `rho_(1)gt rho_(2)` . Their mo

2 Answers 4 Views

Two discs have same mass and thickness. Their materials are of densities `rho_(1)` and `rho_(2)` . The ratio of their moment of inertia about central

2 Answers 6 Views

Two disc has same mass rotates about the same axis with their densities `rho_(1)` and `rho_(2)` respectively such that `(rho_(1)gt rho_(2))`, then the

2 Answers 4 Views

The values of the acceleration due to gravity on two planets are `g_(1) - g_(2)`, then the two planets must have the same

2 Answers 4 Views

Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - a
`(g_(1))/(g_(2))=(rho_(1))/(rho_(2))xx(R_(1))/(R_(2))`
`=(1)/(4)xx(1)/(2)=(1)/(8)`

4 views Answered 2023-02-05 15:29