Satellite Energy Conservation – Rankers Physics

Planet and Satellite: Practice Problem & Solution

Assertion (A): Total energy is conserved in moving a satellite to higher orbit. Reason (R): Sum of change in potential energy and kinetic energy is same in magnitude and opposite in nature.  
Both (A) & (R) are true and the (R) is the correct explanation of the (A)
Both (A) & (R) are true but the (R) is not the correct explanation of the (A)
(A) is true but (R) is false
Both (A) and (R) are false

Short Solution (Best for NEET):

To solve this problem, we apply the core principles of Planet and Satellite. Understanding the underlying formula is key to arriving at the correct answer below:

Assertion (A) is false; moving a satellite to a higher orbit requires external work, increasing its total energy. Reason (R) is false in this context; \(\Delta K = -\Delta U\) applies only when mechanical energy is conserved, which is not the case when external work is done.

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