If the angular momentum of any rotating ball increases by 200%, then the increase in kinetic energy is?
A
400%
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
800%
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C
200%
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
100%
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution
The correct option is B800% E=L22l ∴E∝L2 E2E1=(L2L1)2 E2E1=[L1+200%ofL1L1] =[L1+2L1L1]2=(3)2 E2=9E1 Increment in kinetic energy ΔE=E2−E1 =9E1−E1 ΔE=8E1 ΔEE1=8 or percentage increase=800%.