1.

A satellite is orbiting the earth in a circular orbit of radius `r`. ItsA. Knetic enegy varies as rB. angular momentum varies as `(1)/(sqrt(r ))`C. linear momentum varies as `(1)/( r)`D. frequency of revolution varies as `(1)/(r^(3//2))`

Answer» Correct Answer - D
`K prop (1)/( r)`
Hence, option (a) is incorrect.
Angular momentum
`L=mvr=msqrt((GM_(E))/( r))r=msqrt(GM_(E)r) :. L prop sqrt(r )`
Hence, option ( c) is incorrect.
Frequency of revolution, `v=(1)/(T)=(1)/(2pi)sqrt((GM_(E))/(r^(3))) :. v prop (1)/(r^(3//2)`


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