Gravitation Question 74
Question: Read the assertion and reason carefully to mark the correct option out of the options given below: Assertion: Smaller the orbit of the planet around the sun, shorter is the time it takes to complete one revolution.Reason: According to Kepler’s third law of planetary motion, square of time period is proportional to cube of mean distance from sun.
Options:
A) If both assertion and reason are true and the reason is the correct explanation of the assertion.
B) If both assertion and reason are true but reason is not the correct explanation of the assertion.
C) If assertion is true but reason is false.
D) If the assertion and reason both are false.
E) If assertion is false but reason is true.
Show Answer
Answer:
Correct Answer: A
Solution:
According to Kepler’s third law $ [T^{2}\propto r^{3}] $ If r is small then T will also be small.
