Four particles, each with mass m are arranged symmetrically about the origin on the x axis. A fifth particle, with mass M, is on the y axis. The direction of the gravitational force on M is:

Options

A. (a)`T theta`
B. (b)`2 T theta`
C. (c)`T((pi+2theta)/(2pi))`
D. (d)`T((pi-2 theta)/(2pi))`

Answer

C

Explanation

`T=(2pim)/(qB), w=(2pi)/T`

Time interval for which, it will remain in region `t=((pi+2theta))/(2pi)T`