An insect crawls up a hemispherical surface very slowly (see the figure). The coefficient of friction between the insect and the surface is 
. If the line joining the centre of the hemispherical surface to the insect makes an angle 
with the vertical, the maximum possible value of 
is given by
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
The insect crawls up the bowl upto a certain height h only till the component of its weight along the bowl is balanced by limiting frictional force.
For limiting condition at point A
Dividing eq. (ii) by (i)
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