Geometrical OpticsEasy
Question
wo plane mirror A and B are aligned paralle to each other, as shown in the figure. A light ray is incident an angle 30o at a pint just inside one end of A. The plane of incidence coincids with a plane of the figure. The maximum number of times the ray undergoes reflections (including the first one) before it emerges out is
Options
A.28
B.30
C.32
D.34
Solution
d = 0.2 tan 30o =
Therefore, maximum nunber of reflections are 30.
Create a free account to view solution
View Solution FreeMore Geometrical Optics Questions
A simple convex lens is used in such a way that an object is placed at 25 cm away from the lens. In order to have 10 tim...A ray of light passes through a prism in a principle plane the deviation being equal to of incidence which which is equa...When a ray of light is incident normally on a plane mirror then the angle of reflection will be...Two thin lenses, one of focal length + 60 cm and the other of focal length -20 cm are put in contact. The combined focal...5 lumen/W is the luminous efficiency of a lamp and its luminious intensity is 35 candela. The power of the lamp is :...