A particle of mass 
is tied at the end of a light string of length 
, whose other end is fixed at point 
and is revolving in a horizontal circle of radius 
to form a conical pendulum. A parallel horizontal beam of light forms shadow of the particle on a vertical wall.
If the tension in the string is 
, then the maximum acceleration of the shadow moving on the wall is
Text Solution
Verified by ExpertsThe vertical and horizontal components of tension is equal to 
and 
, respectively, 
is angular speed of particle. Hence,
This is maximum acceleration of shadow moving on wall.
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