General Physics Questions And Answers, Set 35

 

General Physics Questions And Answers

Q1. 

A geosynchronous satellite always appears fixed in the sky.

Answer : 

False

Q2. 

A satellite of mass “m” is in a circular orbit of radius 1.5R around the earth of radius R. How much energy is required to move it to an orbit of radius 2R?

Answer :  

-(G*M*m)/12R

Q3. 

For a satellite executing an elliptical orbit around a planet, its minimum potential energy is at the perigee.

Answer :  

True

Q4. 

The only natural satellite of India is the moon.

Answer :  

True

Q5. 

The earth is able to retain its atmosphere because of _____

Answer :  

the mean velocities of atmospheric gas molecules which is less than that of the earth’s escape velocity

Q6. 

The force of gravity is a conservative force.

Answer : 

True

Q7. 

The gravitational potential energy of a body at a distance “r” from the centre of the earth is V. Its weight at a distance “2r” from the centre of the earth is _____

Answer : 

V/4r

Q8. 

The net acceleration due to gravity is zero at all points inside a uniform spherical shell.

Answer :  

True

Q9. 

The value of universal gravitational constant changes is which of the following medium?

Answer :  

The gravitational constant is independent of the medium

Q10. 

The weight of an object can be zero but the mass of an object can never be zero.

Answer :  

True

🎕🎕🎕

⮞General Physics Questions And Answers, Set 34[PREV]

⮞General Physics Questions And Answers, Set 36[NEXT]

🎕🎕🎕