A right circular cone is fixed with its axis vertical and vertex down. A particle is in contact with its smooth inside surface and describes circular motion in a horizontal plane at the height of 20 cm above the vertex. Find its velocity in 
. (Take 
)
A
B
2
C
4
D
Text Solution
Verified by ExpertsThe correct answer is:
A
…(i)
…(ii)
On putting value of 
in equation (i), we get
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