Question

If a graph is plotted between and for a planet, then its slope will be (where, is the mass of the sun)

• A.
• B.
• C.
• D.

Answer 1

Answer: (A)

Answer 2

Time period of a revolution of a planet.

Where is the mass of the sun Squaring both sides ,we get

$\mathrm { T } ^ { 2 } = \frac { 4 \pi ^ { 2 } \mathrm { r } ^ { 2 } } { \mathrm { GM } _ { \mathrm { s } } }$

The graph between and is a straight line whose slope is

.