Statement 1:
The speed of whirlwind in a tornado is alarmingly high
Statement 2:
If no external torque acts on a body, its angular velocity remains conserved
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:
The speed of whirlwind in a tornado is alarmingly high
Statement 2:
If no external torque acts on a body, its angular velocity remains conserved
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 - 100846 | SaraNextGen Top Answer
Statement 1:
The speed of whirlwind in a tornado is alarmingly high
Statement 2:
If no external torque acts on a body, its angular velocity remains conserved
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: |
The speed of whirlwind in a tornado is alarmingly high |
|
Statement 2: |
If no external torque acts on a body, its angular velocity remains conserved |
|
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 |
(c)
In a whirlwind in a tornado, the air from nearby regions gets concentrated in a small space thereby decreasing the value of its moment of inertia considerably. Since, 
constant, so due to decrease in moment of inertia of the air, its angular speed increases to a high value
If no external torque acts, then
or 
constant 
constant
As in the rotational motion, the moment of inertia of the body can change due to the change in position of the axis of rotation, the angular speed may not remain conserved