Question
Question: If the radius of the earth becomes half of its present value (mass remaining the same), the new leng...
If the radius of the earth becomes half of its present value (mass remaining the same), the new length of the day would be –
A
6 hours
B
12 hours
C
48 hours
D
96 hours
Answer
6 hours
Explanation
Solution
J = Iw = 
\ T µ R2