CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

A boy sitting firmly over a rotating stool has his arms folded. If he stretches his arms, his angular momentum about the axis of rotation:

A
Increase
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
Decreases
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
Remains unchanged
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D
Doubles
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is B Remains unchanged
No external torque acts on the boy when he folds his arms while sitting on the rotating tool. So, angular momentum of the boy is conserved. Thus angular momentum about the axis of rotation remains unchanged.

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Moment of Inertia of Solid Bodies
PHYSICS
Watch in App
Join BYJU'S Learning Program
CrossIcon