Ray Diagram

Q. A light ray is incident at ${30}^{\circ }$ on one of the two mirrors that are placed at right angle to each other. Find the angle of reflection for the ray reflected from mirror B.

1. ${90}^{\circ }$
2. ${60}^{\circ }$
3. ${30}^{\circ }$
4. ${20}^{\circ }$

Q. A light ray is incident on a flat surface, making an angle of 20° with the surface. What is the angle of incidence and angle of reflection respectively?

1. ${70}^{\circ },{70}^{\circ }$
2. ${70}^{\circ },{20}^{\circ }$
3. ${20}^{\circ },{20}^{\circ }$
4. ${20}^{\circ },{70}^{\circ }$

Q.

Which of the following is/are image?

1. Reflection of your face in the mirror

2. Shadow of an object on the ground

3. Vehicles following you in the rear view mirror of a car

4. A thicker/thinner version of your hand when seen through a clear transparent bottle full of water.

Q. A light ray is incident on a flat surface, making an angle of ${20}^{\circ }$ with the surface. What is the angle of incidence and angle of reflection respectively?

Q.
A light ray is incident on a flat surface, making an angle of 30° with the surface. ​What is the angle between the surface and the normal ?

Q. What is the angle of incidence when a ray is incident normally on a plane mirror?

1. 0 degree
2. 90 degrees
3. 30 degrees
4. 45 degrees

Q. What is the angle of incidence when a ray is incident normally on a plane mirror?

1. 0 degree
2. 30 degrees
3. 45 degrees
4. 90 degrees

Q. A light ray is incident perpendicular to the plane mirror. What is the angle of incidence and the angle of reflection respectively?

1. ${90}^{\circ },{180}^{\circ }$
2. ${90}^{\circ },{180}^{\circ }$
3. $0^{\circ },0^{\circ }$
4. $0^{\circ },{90}^{\circ }$

Q. When two plane mirrors are parallel to each other, the angle between them is degrees.

1. 90
2. 180
3. 0
4. 30

Q.

Image is formed when

1. Light rays from object diverge away

2. Light rays from object meet or seem to meet at a point.

3. Light rays from object meet at a point

4. Light rays from object seem to meet at a point.

Q. A light ray is incident on a flat surface, making an angle of ${30}^{\circ }$with the surface. What is the angle between the surface and the normal?

1. ${90}^{\circ }$
2. ${180}^{\circ }$
3. ${30}^{\circ }$
4. ${60}^{\circ }$