"A vertical rod of height 33 metres is bent to form a semi-circular shape so that the top
Channel: Doubtnut
Date: 2020-04-12

"A vertical
 rod of height 33 metres is bent to form a semi-circular shape so that the top
 touches the ground. The distance between the top head and the base on the ground
 is
(a) 10.5
 m (b) 12 m (c) 21 m (d) 33 m"