JEE MainPhysicsGravitationNumerical+4 / −1
If the radius of earth is reduced to three-fourth of its present value without change in its mass then value of duration of the day of earth will be hours 30 minutes.
Numerical answer
More from Gravitation
- Assuming the earth to be a sphere of uniform mass density, a body weighed on the surface of earth. How much it would weigh at R/4 depth under surface of earth ?2024 · MCQ
- Two planets and having masses and move around the sun in circular orbits of and radii respectively. If angular momentum of is and that of is , the ratio of time period …2024 · MCQ
- Two satellite A and B go round a planet in circular orbits having radii 4R and R respectively. If the speed of is , the speed of will be :2024 · MCQ
- An astronaut takes a ball of mass from earth to space. He throws the ball into a circular orbit about earth at an altitude of . From earth's surface to the orbit, the change in total mechanical energy of the ball is…2024 · MCQ
- A satellite of mass is revolving in circular orbit of radius . If energy is supplied to the satellite, it would revolve in a new circular orbit of radius (use …2024 · MCQ
- The acceleration due to gravity on the surface of earth is . If the diameter of earth reduces to half of its original value and mass remains constant, then acceleration due to gravity on the surface of earth would be :2024 · MCQ
- Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : The angular speed of the moon in its orbit about the earth is more than the angular speed of the earth in its orbit…2024 · MCQ
- At what distance above and below the surface of the earth a body will have same weight. (take radius of earth as .)2024 · MCQ