A particle is moving in a vertical in a vertical circle . The tensions in the string when passing through two positions at angles `30^(@) and 60^(@)` from the lowest positon are `T_(1) and T_(2)` respectively , then

Options

A. `T_1=T_(2)`
B. `T_(1) gt T_(2)`
C. `T_(1) lt T_(2) `
D. `T_(1) geT_(2)`

Answer

B

Explanation

`T=(mv^(2))/(r)+mgcosq`
as `theta` increases `costheta and v`
both decreases
hence for `theta=60^(@)`, T will be less, i.e., `T_(1) geT_(2)`.