Uses of Convex Mirrors

Q.

The mirror used by a dental surgeon is?

1. Plane

2. Convex

3. Concave

4. B & C both

Q. In parking mirrors a convex mirror is used instead of a plane mirror because:

1. Convex mirror has a higher field of view as compared to a plane mirror of the same size
2. Convex mirror is cheap to build
3. Convex mirror doesn't follow the laws of reflection
4. There is no such condition, even plane mirror can be used as a parking mirror.

Q. X is a mirror which has a smaller field of view than a plane mirror with the same aperture, and is a focusing mirror. X is

1. a concave mirror
2. a convex mirror
3. either a concave or a convex mirror
4. neither a concave nor a convex mirror.

Q. In parking mirrors a convex mirror is used instead of a plane mirror because:

1. Convex mirror is cheap to build
2. Convex mirror doesn't follow the laws of reflection
3. Convex mirror has a higher field of view as compared to a plane mirror of the same size
4. There is no such condition, even plane mirror can be used as a parking mirror.