A circular disc rolls down an inclined plane, the fraction of its total energy associated with its rotation is ________ .
एक गोलाकार डिस्क एक झुके हुए तल पर लुढ़कती है, इसके घूर्णन से जुड़ी कुल ऊर्जा का अंश ________ है।
1/2
1/3
1/4
2/3
1/3
We know that, mass moment of inertia of circular solid disc,
Angular velocity 
Now, kinetic energy of rotation is given by,
Kinetic energy of translation is given by,
Total kinetic energy,
Fraction of its total energy associated
with its rotation energy,
Hence, the correct option is (B).
Preparing students for success in a changing World.
We care about our students
RPSC-AE, RSMSSB-JE, SSC-JE, RRB-JE, PSU's