Figure shows a torch producing a straight light beam falling on a plane mirror at an angle `60^(@)` The reflected beam makes a spot P on the screen along y-axis . If at t=0, mirror starts ratating about the hinge A with an angular velocity `(omega)=1^(@)` per second clockwise. Find the speed of the spot on screen after time t = 15 s.

Figure shows a plane mirror hinged at O and free to rotate in a vertical plane. The point O is at a distance x from a long screen. A beam of light moving vertically downwards is reflected by the mirror at O so that a bright spot P is formed at the screen. At the instant shown, the angle of incidence is theta and the mirror is rotating clockwise with constant angular veloity omega . Find the speed of spot P at this instant.

A small plane mirror placed at the centre of a spherical screen of radius R. A beam of light is falling on the mirror, If the mirror makes n revolution per second, the speed of light on the screen after reflection from the mirror will be

A light ray I is incident on a plane mirror M .The mirror is rotated in the direction as shown in the figure by an arrow at frequency (9)/(pi) "rev"//"sec" ,The light reflected by the mirror is received on the wall W at a distance 10m from the axis of rotation .When the angle of incidence becomes 37^(@) find the speed of the spot (a point) on the wall?

A glass cube has side length a and its refractive index is mu = (3)/(2) . A ray of light (AB) is incident normally on one of its face and after passing through the cube it forms a spot S on screen sigma . The cube begins to rotate with angular speed omega about its central axis as shown in the Figure. Immediately after the cube begins to rotate, find the speed of the spot S on the screen.

A particle movesin the X-Y plane with a constasnt acceleration of 1.5 m/s^2 in the direction making an angle of 37^0 with the X-axis.At t=0 the particle is at the orign and its velocity is 8.0 m/s along the X-axis. Find the velocity and the position of the particle at t=4.0 s.