Spherical Mirrors

Q. What is centre of curvature?

Q. What is difference between concave lense and concave mirror?

Q. Question 21
Why does a light ray incident on a rectangular glass slab immersed in any medium emerges parallel to itself? Explain using a diagram.

Q.

What will happen if the aperture of the spherical mirror is greater than the radius of the curvature of the spherical mirror?

Q.

___mirror is used as a rear-view mirror in cars.

1. Convex

2. Plane

3. Concave

4. Plano convex

Q. Why is concave mirror is used for make up

Q. When light rays parallel to principal axis are incident on a concave mirror, the reflected rays meet at .

1. focus
2. centre of curvature
3. pole

Q. Which among the following mirrors is used in shopping malls for security purposes?

1. Concave mirror
2. Plane mirror
3. Convex mirror
4. Converging mirror

Q.

Which type of spherical mirror is used as reflectors at sharp turns or blind corners in big shopping malls or as rear-view mirrors in cars? [2 MARKS]

Q. If the reflecting surface is curved outwards it is a convex mirror.

1. True
2. False

Q.

We can obtain an enlarged and erect image with a convex mirror.

1. True

2. False

Q.

Convex mirror is also known as a divergent mirror.

1. True

2. False

Q. Distance between focus and centre of curvature is equal to ___.

1. Half of radius of curvature
2. Radius of curvature
3. Object distance
4. Height of the mirror

Q.

Which of the following can be used to form a real image?

1. Concave mirror only

2. Plane mirror only

3. Convex mirror only.

4. Both concave and convex mirrors

Q. Choose the correct type of mirror and its properties.

1. Concave - Inward reflecting surface, diverging
2. Convex - Inward reflecting surface, diverging
3. Convex - Outward reflecting surface, converging
4. Concave - Inward reflecting surface, converging

Q. State three rules for drawing geometric images images in front of a concave mirror.

Q.

A _________________ mirror is used by ENT specialists.

Q. Doctors use concave mirror or convex mirror to see in mouth

Q. Which mirror is used for reflecting type of telescope why

Q.

Concave mirror always forms a virtual image.

1. True

2. False

Q. Define side mirror

Q. The inner round surface of the steel spoon acts as a _________ mirror and the outer round surface of the steel spoon acts as a _________ mirror.

1. concave, concave
2. concave, convex
3. convex, convex
4. convex, concave

Q. What is the difference between lens and mirror?

Q.

Why is your face upside down in the inward curve of the spoon?

1. It happens only when there is moisture on the spoon

2. It behaves as a convex mirror

3. It is a property of all metals

4. It behaves as concave mirror

Q.

Question 10

Fill in the blanks:
(a) The inner surface of a steel spoon acts as a ___ Mirror
(b) The outers surface of a flat steel plate acts as a ___Mirror
(c) The outer shining surface of a round bottom steel bowl acts as a ___Mirror
(d) The inner surface of the reflector of a torch acts as a ___ Mirror.

Q.

Unlike a spherical mirror, a plane mirror always gives a real image.

1. False

2. True

Q.

What are the properties of an image formed on a plane mirror?

Q. (a) Define a spherical mirror.
(b) Distinguish between a concave mirror and a convex mirror.
(c) What is the difference between a real image and a virtual image?

Q. Observe the figure and identify which type of mirror is used? How do you justify it? [2 marks]

Q.

A smooth reflecting surface is bent as shown in the figure. The reflecting surface is facing outward. What kind of mirror is formed?

1. Convex
2. Concave
3. None of the above
4. Plane