If the mass of the bob in a simple pendulum is increased to thrice its original mass and its length is made half its original length, then the new time period of oscillation is x/2 times its original time period. Then the value of x is:
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In the above diagram a strong bar magnet is moving towards solenoid2 from solenoid1. The direction of induced current in solenoid1 and that in solenoid2, ,respectively , are through the directions: