Exams › NEET › Physics

The radii of two planets are respectively 1 R and 2 R and their densities are respectively 1  and 2  . The ratio of the accelerations due to gravity at their surfaces is

1. 2 2 2 2 1 1 2 1 : : R R g g   
2. 2 1 2 1 2 1 : :   R R g g 
3. 1 2 2 1 2 1 : :   R R g g 
4. 2 2 1 1 2 1 : :   R R g g 

Correct answer: 2 2 1 1 2 1 : :   R R g g 

Related NEET Physics questions

• The radius of the earth is 6400 km and 2 sec / 10 m g  . In order that a body of 5 kg weighs zero at the equator, the angular speed of the earth is
• Radius of earth is around 6000 km . The weight of body at height of 6000 km from earth surface becomes
• A body weighs 200 N on the surface of the earth. How much will it weight halfway down to the center of the earth ?
• An object weights 72 N on earth. Its weight at a height of R /2 from earth is
• The depth d at which the value of acceleration due to gravity becomes n 1 times the value at the surface, is [R = radius of the earth]
• What will be the acceleration due to gravity at height h if h >> R . Where R is radius of earth and g is acceleration due to gravity on the surface of earth

⚔️ Practice NEET Physics free + battle 1v1 →