357. JEE Advanced Physics Paper 2 Question 15 ||PYQ solutions ||Shorts || JEE paper discussion

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357. JEE Advanced Physics Paper 2 Question 15 ||PYQ solutions ||Shorts || JEE paper discussion
JEE Advanced 2022 Physics Paper 2 Question 15|| PYQ solutions || JEE paper discussion
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A flat surface of a thin uniform disk A of radius R is glued to a horizontal table. Another thin uniform disk B of mass M and with the same radius R rolls without slipping on the circumference of A, as shown in the figure. A flat surface of B also lies on the plane of the table. The centre of mass of B has fixed angular speed omega about the vertical axis passing through the centre of A. The angular momentum of B is nM omega R2 with respect to the centre of A. Which of the following is the value of n?
(A) 2 (B) 5 (C) 7/2 (D) 9/2

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