A satellite is a circular orbit radius 7000 km around the Earth. If it is transferred to circular orbit of double the radius,
`{:(,"Column I",,"Column II"),((A), "Angular momentum",(P),"increase."),((B),"Area of Earth covered by satellite signal",(Q),"decreases."),((C ),"potential energy",(R ),"becomes double."),((D),"kinetic energy",(S),"becomes half."):}`

Answer

A, B, C, D

Explanation

(A) `L = mvr = m(sqrt((GM)/(r )))r`
`therefore L prop sqrt(r )`
So angular momentum increase and becomes `sqrt(2)` times

`A=4pi R^(2)-2xx2pi R^(2)(1-cos theta)=4pi R^(2)cos theta`
So, area covered by satellite increases
(C ) `U= - (GMm)/(r )`
So, when r is double PE becomes half and increases
`KE = (GMm)/(r )`
So, KE decreases and becomes half