Binding energy of a revolving satellite at height h is $3.5 \times 10^{8} \mathrm{~J}$. Its potential energy…

Binding energy of a revolving satellite at height h is $3.5 \times 10^{8} \mathrm{~J}$. Its potential energy is
  1. $7 \cdot 0 \times 10^{8} \mathrm{~J}$
  2. $-7 \cdot 0 \times 10^{8} \mathrm{~J}$
  3. $-3 \cdot 5 \times 10^{8} \mathrm{~J}$
  4. $3.5 \times 10^{8} \mathrm{~J}$

Solution

$\begin{aligned} \text { Potential energy } &=-2(\text { Binding energy }) \\ &=-2 \times 3.5 \times 10^{8} \mathrm{~J} \\ &=-7.0 \times 10^{8} \mathrm{~J} \end{aligned}$ .

Asked in: MHT CET 2020 (13 Oct Shift 1)

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