Statement 1:
If the earth shrinks(without change in mass) to half it’s present size, length of the day would become 6 hr
Statement 2:
As size of earth change, its moment of inertia changes
a)
Statement 1 is True, Statement 2 is True; Statement 2 is correct explanation for Statement 1
b)
Statement 1 is True, Statement 2 is True; Statement 2 is not correct explanation for Statement 1
c)
Statement 1 is True, Statement 2 is False
d)
Statement 1 is False, Statement 2 is True
Statement 1:
If the earth shrinks(without change in mass) to half it’s present size, length of the day would become 6 hr
Statement 2:
As size of earth change, its moment of inertia changes
a)
Statement 1 is True, Statement 2 is True; Statement 2 is correct explanation for Statement 1
b)
Statement 1 is True, Statement 2 is True; Statement 2 is not correct explanation for Statement 1
c)
Statement 1 is True, Statement 2 is False
d)
Statement 1 is False, Statement 2 is True
Question ID - 100941 | SaraNextGen Top Answer
Statement 1:
If the earth shrinks(without change in mass) to half it’s present size, length of the day would become 6 hr
Statement 2:
As size of earth change, its moment of inertia changes
a)
Statement 1 is True, Statement 2 is True; Statement 2 is correct explanation for Statement 1
b)
Statement 1 is True, Statement 2 is True; Statement 2 is not correct explanation for Statement 1
c)
Statement 1 is True, Statement 2 is False
d)
Statement 1 is False, Statement 2 is True
|
Statement 1: |
If the earth shrinks(without change in mass) to half it’s present size, length of the day would become 6 hr |
|
Statement 2: |
As size of earth change, its moment of inertia changes |
|
a) |
Statement 1 is True, Statement 2 is True; Statement 2 is correct explanation for Statement 1 |
|
b) |
Statement 1 is True, Statement 2 is True; Statement 2 is not correct explanation for Statement 1 |
|
c) |
Statement 1 is True, Statement 2 is False |
|
d) |
Statement 1 is False, Statement 2 is True |
(a)
When the earth shrinks, its angular momentum remains constant, i.e.,
constant
, it means if size of the earth changes, then its moment if inertia also changes
If radius is half, the time period will become 
. Hence, 24/4=6 h