a point source of light is rotating in a horizontal plane at a speed of omega radians/second. There is a wall at a distance d from the source. At some instant the focus of the light is at P and angleSPN=theta (see figure). Speed of the focus at this instant in terms of theta is

a point source of light is rotating in a horizontal plane at a speed o

1.	a point source of light is rotating in a horizontal plane at a speed of omega radians/second. There is a wall at a distance d from the source. At some instant the focus of the light is at P and angleSPN=theta (see figure). Speed of the focus at this instant in terms of theta is
Answer» `omegad//costheta` `omegad//sintheta` `omegad//tantheta` `omegad//sin^(2)THETA` ANSWER :D