CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon
MyQuestionIcon
Question

For a simple pendulum, a graph is plotted between its kinetic energy (KE) and potential energy (PE) against its displacement d. Which one of the following represents these correctly?
(graphs are schematic and not drawn to scale)

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

The correct option is B
In an SHM, variation of potential energy with displacement d is given by
PE (y)=12kd2, which represents the equation of a straight parabola with vertex at d=0.

And variation of kinetic energy with displacement d is given by
KE (y)=12k(a2d2), which represents the equation of an inverted parabola with vertex at d=a.

Here, a is the amplitude of the SHM.
Hence the correct choice is B.

flag
Suggest Corrections
thumbs-up
2
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Simple Pendulum
PHYSICS
Watch in App
Join BYJU'S Learning Program
CrossIcon