1What is the reflection of light? Write the laws of the reflection of light.
2What is irregular reflection of light? Describe it with a figure.
3Write the difference between regular and irregular reflection.
4Why can we see the objects around us, and why can we see nothing in a dark room?
5Define incident ray, reflected ray, normal, angle of incidence and angle of reflection.
6A ray strikes a plane mirror at 30° to the mirror surface. Find the angle of incidence and the angle of reflection.
7The angle between the incident ray and the reflected ray is 80°. Find the angle of incidence.
8Describe the nature of the image formed in a plane mirror, and explain why it is called virtual.
9Describe any two uses of the reflection of light in daily life.
10How does a periscope work? Describe with a ray diagram, and give its uses.