Match List I with List II :
| LIST I | LIST II | ||
|---|---|---|---|
| A. | Kinetic energy of planet | I. | $ -\mathrm{GMm} / \mathrm{a} $ |
| B. | Gravitation Potential energy of sun-planet system | II. | $ \mathrm{GMm} / 2 \mathrm{a} $ |
| C. | Total mechanical energy of planet | III. | $ \frac{\mathrm{Gm}}{\mathrm{r}} $ |
| D. | Escape energy at the surface of planet for unit mass object | IV. | $ -\mathrm{GMm} / 2 \mathrm{a} $ |
(Where $\mathrm{a}=$ radius of planet orbit, $\mathrm{r}=$ radius of planet, $\mathrm{M}=$ mass of Sun, $\mathrm{m}=$ mass of planet)
Choose the correct answer from the options given below :
Solution
<p>$\text { K.E }=\frac{G M m}{2 a} \quad \text{(II)}$</p>
<p>$U_G=\frac{-G M m}{a} \quad \text{(I)}$</p>
<p>$M . E=\frac{-G M m}{2 a} \quad \text{(IV)}$</p>
<p>$\text { and Escape Energy }=\frac{G m}{r} \quad \text{(III)}$</p>
About this question
Subject: Physics · Chapter: Gravitation · Topic: Newton's Law of Gravitation
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