1.

A horizontal platform with an object placed on it is executing S.H.M. in the vertical direction. The amplitude of oscillation is \[3.92\times {{10}^{-3}}m\]. What must be the least period of these oscillations, so that the object is not detached from the platform                                                        [AIIMS 1999]

A.            0.1256 sec                              
B.            0.1356 sec
C.            0.1456 sec                              
D.            0.1556 sec
Answer» B.            0.1356 sec


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