If a satellite orbits as close to the earth's surface as possible,

Options

A. (i),(ii)
B. (i),(ii),(iii)
C. (i),(ii),(iv)
D. (ii),(iv)

Answer

B

Explanation

`v=sqrt((GM_(e))/r) implies v prop 1/(sqrt(r))`
`T=(2pir^(3//2))/(sqrt(GM)) implies T prop r^(3//2)`
`E=-(GM_(e)m)/(2r) implies E prop(-1/r)`
lower value of `r` i.e, `E` is more negative