Find out no. of reflection after which right Ray will exit from (Given `sin 40^(@)=0.64`) (A) 130000 (B) 57803 (C) 140000 (D) 150000

Find the reflection of the plane a\'x+b\'y+c\'z+d\'=0 in the plane ax+by+cz+d=0

Find the reflection of the plane ax+by+cz+d=0 in the plane a\'x+b\'y+c\'z+d\'=0

Find the reflection of the plane ax+by+cz+d=0 in the plane a\'x+b\'y+c\'z+d\'=0

In figure, the optical fiber is I=2m long and has a diameter of d=20 mum . If a ray of light is incidnet on one end of the fiber at angle 0_(1)=40^(@)C , the number of reflections if makes before emerging from the other and is close to: (refractive index of fiber is 1.31 and sin40^(@)=0.64 )

A B C is a right angled triangle in which /_A=90^0a n d\ A B=A Cdot Find /_B\ a n d\ /_C

Figure shows a mirror M on which a light ray incident at an angle 40^(@) from normal. If the ray is rotated by 10^(@) clockwise find the change in angle of deviation of light after reflection.

In figure, the optical fiber is l = 2 m long and has a diameter of d = 20 mum. If a ray of light is incident on one end of the fiber at angle theta_1=40^@ , the number of reflections it makes before emerging form the other end is close to : (refractive index of fiber is 1.31 and sin40^@=0.64 )