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JEE Main 9 Jan 2020 Shift 1 Solved Paper

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Question : 22

Total: 75

One end of a straight uniform 1m long bar is pivoted on horizontal table. It is released from rest when it makes an angle 30° from the horizontal (see figure). Its angular speed when it hits the table is given as √ns−1, where n is an integer. The value of n is

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