Practice free →
Home › CBSE Class 11 (Science) › Physics › Gravitation › As per your syllabus, eqn 7.42, the TOTAL mechan…

As per your syllabus, eqn 7.42, the TOTAL mechanical energy of an orbiting satellite is which?

AE = G M m / (R + h)
BE = + G M m / [2 (R + h)]
CE = 0 always
DE = − G M m / [2 (R + h)]
Answer & Solution
Correct answer: D. E = − G M m / [2 (R + h)]
syllabus eqn 7.42: E = KE + PE = GMm/[2(R+h)] − GMm/(R+h) = −GMm/[2(R+h)]. Negative ⇒ bound orbit.
Solve this in the app — CBSE Class 11 (Science) practice & 24k+ MCQs →
Related questions