Question

The shortest mirror in which a creature from outer space can see its entire body is ______its height.

Answer 1

Answer:

half of

Explanation:

if height= h

then min size of mirror = h/2

Answer 2

The shortest mirror in which a creature from outer space can see its entire body is half of its height.

Explanation:

• In case of thin lens the focal length is the distance between principal foci and center of the lens. In convex lens it is positive and the beam would be focused at a single point.

• Focal length also changes the perspective and scale of your image. Short focal length appears to be of more space between the materials in your photo.

• Focal length is necessary because a longer focal length is needed for far objects and a smaller focal length is needed for near objects and the things right in front of us. Hence the mirror of short focal length gives  you the image of the entire body.