Concave and Convex Mirrors

Q.

In torches, searchlights, and headlights of vehicles, the bulb is placed

1. between the pole and the focus of the reflector

2. very near to the focus of the reflector

3. between the focus and center of curvature of the reflector

4. at the center of curvature of the reflector

Q.

When an object is placed between the focus and the pole of a concave mirror, the image is .

1. real
2. virtual
3. diminished

Q.

A concave mirror is also known as converging mirror.

Say True or False.

1. True

2. False

Q. Which mirror has its reflecting surface curved inwards?

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

Q.

Observe the optical systems above. Given that all surfaces are made of transparent glass and the dotted surfaces represent plane surface. Which among them can be considered as lenses?

1. I, II, IV, V

2. I, II, III, V

3. I, II, III, IV

4. I, IV only

Q.

Can a convex lens produce virtual image? Explain.

Q. True or False :-
1: A convex mirror cannot form a real image.
2: A concave mirror is used in solar cookers.
3: The normals drawn at different points of a concave mirror will all pass through the centre of curvature.

Q. Do concave mirror converges or diverges the light?

Q. Identify the type of mirror used in these following figures.

1. 
2. 
3. 
4. 

Q. A concave mirror always forms a virtual image.

1. True
2. False

Q.

A virtual image larger than the object can be produced by a ______________.

1. convex mirror

2. plane mirror

3. concave lens

4. concave mirror

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.

A lens is called a thin lens if its overall thickness is

1. small

2. large

3. infinitely large

4. none of these

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

1. 
2. 
3. 
4. 
5. 

Q.

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

1. False

2. True

Q.

What type of mirror is used in the headlights of a car?

1. Plane

2. Convex

3. Concave

4. Plano concave

Q. Match the nature of the reflected rays with the type of mirror on which parallel rays were incident.

1. Concave Mirror
2. Convex Mirror
3. Plane Mirror

Q. Which type of spherical mirror does the inner surface and the outer surface of a polished spoon act as?

1. Inner - concave; Outer - convex
2. Inner - concave; Outer - concave
3. Inner - convex; Outer - convex
4. Inner - convex; Outer - concave

Q. Label the system of an object and its image formation in a spherical mirror.

1. Focus
2. Image
3. Concave mirror
4. Convex mirror

Q. The parallel rays converge to meet at the focus of a convex mirror

1. True
2. False