Reflection of Light
Physics ⇒ Light and Optics
Reflection of Light starts at 7 and continues till grade 12.
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See sample questions for grade 7
A periscope uses two plane mirrors. What is the main purpose of using mirrors in a periscope?
A ray of light hits a mirror at an angle of 45° to the normal. What will be the angle between the incident ray and the reflected ray?
A student shines a torch at a mirror at an angle of 20° to the normal. At what angle will the light reflect?
Describe the difference between regular and diffuse reflection.
Describe what happens to light when it strikes a rough surface.
Explain why the image in a plane mirror is called virtual.
Explain why you can see yourself in a mirror but not on a wall.
A student shines a torch at a mirror at an angle of 20° to the normal. At what angle will the light reflect?
Which of the following devices uses the principle of reflection of light?
(1) Microscope
(2) Periscope
(3) Thermometer
(4) Barometer
Which of the following is an example of a good reflector of light?
(1) Mirror
(2) Paper
(3) Wood
(4) Cloth
Which of the following is an example of diffuse reflection?
(1) Light reflecting from a calm lake
(2) Light reflecting from a mirror
(3) Light reflecting from a rough wall
(4) Light reflecting from a glass window
Which of the following is NOT a characteristic of the image formed by a plane mirror?
(1) The image is virtual.
(2) The image is the same size as the object.
(3) The image is inverted vertically.
(4) The image is laterally inverted.
Fill in the blank: A _______ image is formed when light rays actually meet at a point after reflection.
Fill in the blank: The _______ of reflection states that the angle of incidence is equal to the angle of reflection.
Fill in the blank: The angle between the incident ray and the normal is called the angle of _______.
Fill in the blank: The angle of reflection is measured from the _______ to the reflected ray.
True or False: A piece of white paper reflects all the light that falls on it.
True or False: Reflection of light can only occur on shiny surfaces.
True or False: The angle of incidence is always equal to the angle of reflection.
True or False: The image formed by a plane mirror is always real.
