Two mirrors P and Q are placed at right angles to each other as shown in the figure. A ray of light is incident on mirror P at an angle of 35𝑜35 o with the normal, the reflected ray then falls on mirror Q. The angle of reflection with the normal on mirror Q would be?

Two adjacent plane mirrors form a right angle. A light ray is incident upon one of the mirrors at an angle 30o to the normal. What is the angle at which the light ray is reflected from the second mirror?

Two mirrors A and B are placed at right angles to each other as shown in figure. A ray of light incident on mirror A at an angle of 250 falls on mirror B after reflection. The angle of reflection for the ray reflected from mirror B would be

A light ray strikes a mirror at an angle of 60o to the normal. The mirror is then rotated 18o clockwise as shown in figure.What is the angle that the reflected ray makes with the mirror?

A ray of light is incident towards a plane mirror at an angle of 63𝑜63 o with the mirror surface of the plane mirror. What will be the angle of reflection?

A light ray strikes a plane mirror at an angle to its surface.  Which of the following is equal to the angle of reflection of the ray?The angle between the reflected ray and the normalThe angle between the surface and the reflected rayThe angle between the incident and reflected raysThe angle between the surface and the normal2A ray of light is normally incident onto a mirror (in other words, it is incident along the normal).  Which of the following statements does NOT apply to this situation?Its angle of reflection is equal to 90°Its angle of incidence is equal to 0°The normal is at right angles to the surface of the mirrorThe Law of Reflection will apply when the ray reflects from the surface3Which of the following statements does NOT apply to wavefront diagrams?The distance between two adjacent wavefronts is equal to the wavelength of the waveWavefront diagrams can be used to describe the reflection of any type of waveIf the speed of a wave is constant and its frequency increases, the distance between its wavefronts will decreaseWavefronts are always drawn parallel to the direction in which the wave is travelling4A sound wave strikes a flat brick wall.  The angle between the incident wave and the wall is 30°.  What is the angle of reflection of this wave?90°60°30°150°5The angle of incidence of a light ray onto a plane mirror is 20°.  What is the angle of reflection of the ray?0°70°20°40°6A ray of light is travelling from glass into air at an angle of incidence of 40°.  The critical angle for the glass-air boundary is 41°.  What will happen to the ray of light when it strikes the boundary?It will travel along the boundary (interface) between the air and the glass (in other words, its angle of refraction will be equal to 90°)It will undergo total internal reflectionIt will pass out of the glass and refract away from the normalIt will not be refracted or reflected and will continue in its original path7A ray of light is travelling from water into air.  The critical angle for the water-air boundary is 49°.  For which of the following angles of incidence will this ray undergo total internal reflection?49°48°50°0°