A satellite needs a specific velocity to revolve in a spacific orbit.

Answer

TRUE

Explanation

Centripetal force on the satellite `(mv_(c)^(2))/(R+h)=`
gravitational force exerted by the earth on the satellite `(GMm)/((R+h)^(2))`
where m: mass of the satellite,
`v_(c)`: critical velocity of the satellite,
h: height of the satellite from the surface of the earth,
M: mass of the earth,
R: radius of the earth,
G: gravitational constant
`therefore v_(c)^(2)=(GM)/(R+h)`
`therefore v_(c)=sqrt((GM)/(R+h))`
Thus, if the value of h changes, the value of `v_(c)` also changes. It means a satellite needs to be given a specific velocity (in the tangential direction) to keep it revolving in a specific orbit.