Concave Mirrors

Q. What is the nature of image formed by a concave mirror having magnification + 3?

1. Virtual and Erect
2. Virtual and Inverted
3. Real and Erect
4. Real and Inverted

Q.

If the magnification has a negative sign, the image formed by the concave mirror must be

1. Real and Inverted

2. Virtual and Erect

3. Real and Erect

4. Virtual and Inverted

Q. Which among the following is a converging mirror?

1. Plane mirror
2. Convex mirror
3. Concave mirror
4. Plano-convex mirror

Q. Draw the ray diagram. [1 Mark]

Q. Find the right sequence of things that happen in the process of seeing an object.

1. Brain
2. Object
3. Eyes
4. Reflection
5. Light source

Q.

A concave mirror produce 3 times anlarge (real) image of an object placed at 10 cm . In front of it . Calculate R?

Q. A concave mirror produces three times magnified real image of an object placed 10 cm in front of it. Where is the image located?

Q. Rays from Sun converge at a point 15 cm in front of a concave mirror. Where should an object be placed so that size of its image is equal to the size of the object ?

1. 15 cm in front of the mirror
2. between 15 cm and 30 cm in front of the mirror
3. more than 30 cm in front of the mirror
4. 30 cm in front of the mirror

Q. is a real inverted and enlarged image always formed by concave mirror?

Q. A concave mirror produces 3 times magnified real image of an object placed 10 cm in front of. Where is the image located?

Q.

Explain the difference between a concave and a convex mirror.

Q. Identify the correct position of the image of the Sun formed by the concave mirror.

1. 
2. 
3. 
4. 
5. 

Q.

What are spherical mirrors? How many types of spherical mirrors are there? Explain their properties.

Q. When used for its intended purpose, a make-up mirror causes a person's face to look larger and right-side-up.
What kind of mirror is a make-up mirror and where should the person be located relative to the focal point ($f$) to get the desired image?

1. Type of Mirror - convex, Location of Person - between $f$ and $2f$
2. Type of Mirror - concave, Location of Person - between $f$ and $2f$
3. Type of Mirror - concave, Location of Person - closer than $f$ to the mirror
4. Type of Mirror - convex, Location of Person - closer than $f$ to the mirror
5. Type of Mirror - plane, Location of Person - anywhere in front of the mirror
   

Q. When reflection takes place from a spherical mirror, positions of the object and its image are measured from the ......................

1. focal plane
2. poles
3. focus
4. radius of curvature

Q. A person standing in front of a mirror finds his image larger than himself. This implies that the mirror is ______.

1. concave
2. cylindrical with bulging side outwards
3. plane
4. convex

Q. A ray through the Centre of Curvature hitting the spherical mirror makes an angle of with the normal.

1. ${45}^{\circ }$
2. ${90}^{\circ }$
3. $0^{\circ }$

Q. A concave mirror is used to focus the image of a flower on a nearby well 120 cm from the flower. If a lateral magnification of 16 is desired, the distance of the flower from the mirror should be

1. 8 cm
2. 12 cm
3. 80 cm
4. 120 cm

Q.

Where does the centre of curvature lie:-

1. a & d

2. b & c

3. d only

4. c and d

Q. Draw ray diagrams showing the image formation by a concave mirror when an object is placed

(a) between pole and focus of the mirror
(b) between focus and centre
of curvature of the mirror
(c) at centre of curvature of the mirror
(d) a little beyond centre of curvature of the mirror
(e) at infinity

Q. image formed in concave mirror is 5 times the object height what is the value of its magnification

Q. Draw ray diagrams showing the image formation by a concave mirror when an object is placed

(a) between pole and focus of the mirror
(b) between focus and centre
of curvature of the mirror
(c) at centre of curvature of the mirror
(d) a little beyond centre of curvature of the mirror
(e) at infinity

Q. An object of size 7.0 cm is placed at 27 cm in front of a concave mirror of focal length 18 cm. At what distance from the mirror should a screen be placed so that a sharp focused image can be obtained? Find the size and the nature of the image.
[5 marks]

Q. Where is the centre of curvature lies in the case of concave mirror?

1. Boundary
2. Inside
3. Outside
4. Front

Q. Spherical mirror with reflecting surface curved inwards is called :-

1. curved mirror
2. Reflecting mirror
3. Convex mirror
4. Concave mirror