Define 1 Henry
The coefficient of self induction is said to be one henry , if e.m.f. of one volt is induced in the coil , when the current in the same coil changes at the rate of one ampere per second
Posted by Manoj Jaiswar ( PMJ Sir )
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A girl stands 170 m away from a high wall and claps her hands at a steady rate so that each clap coincides with the echo of the one before. a) If she makes 60 claps in 1 minute, what value should be the speed of sound in air? b) Now, she moves to another location and finds that she should now make 45 claps in 1 minute to coincide with successive echoes. Calculate her distance for the new position from the wall.
As per the given condition in the question we can list some data as, dista…