Question

A person stands 1.70 m away from the reflecting surface of a plane mirror.

(a) What is the distance between the person and his or her image?

(b) What are the image's characteristics? The answer options are:

-Real, inverted and magnified

-Virtual, erect and has the same height as the object

-Virtual, inverted and magnified

-Real, erect and diminished

-Virtual, inverted and has the same height as the object

-Real, inverted and has the same height as the object

-Real, erect and magnified

-Virtual, erect and magnified

-Virtual, inverted and diminished

-Real, erect and has the same height as the object

-Virtual, erect and diminished

-Real, inverted and diminished

Answer 1

(a) One of the Plane mirror characteristics is that

The image distance from the mirror is equal to object distance from the mirror.

This implies the image distance from the mirror = 1.7m

It's given person distance is 1.7 m from plane mirror.

Distance between person and his image is 1.7+1.7 = 3.4 m

(b) characteristics of plane mirror

Virtual, erect and has the same height as the object

-Virtual images are images that are formed in locations where light does not actually reach. Light does not actually pass through the location on the other side of the mirror; it only appears to an observer as though the light is coming from this location

- An erect image, in optics, is one that appears right-side up.

- plane mirrors create image of same height as that of object.