NEET
- Exam
- NEET
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- Physics
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- Rotational Motion
NEET · Physics · Rotational Motion
Two discs of moments of inertia I 1 and I 2 about their respective...
Two discs of moments of inertia I1and I2about their respective axes (normal to the disc and passing through the centre), and rotating with angular speed ω1and ω2are brought into contact face to face with their axes of rotation coincident. Does the law of conservation of angular momentum apply to the situation?
Options
- ANo, because the moments of inertia of the discs are different.
- BYes, because the discs have the same angular speed.
- CYes, because there is no net external torque on the system.
- DNo, because the axes of rotation are coincident.
Correct answer
C. Yes, because there is no net external torque on the system.
Step-by-step solution
Correct Option is : (C)
Yes, because there is no net external torque on the system.
Yes, because there is no net external torque on the system.