Question

If the mass of the Sun were ten times smaller and the universal gravitational constant were ten times larger in magnitude, which of the following is not correct ?

• A. g' on the Earth will not change.
• B. Raindrops will fall faster
• C. Time period of a simple pendulum on the Earth would decrease.
• D. Walking on the ground would become more difficult.

Answer 1

Answer: (A)

g' on the Earth will not change.

Answer 2

If Universal Gravitational constant becomes ten times, then $G '=10 G$
So, acceleration due to gravity increases.