A woman 1.6 m in height wants a plane mirror so that she can view her full heigh

Question

A woman 1.6 m in height wants a plane mirror so that she can view her full height. The minimum vertical size of such a mirror is

Question 1 options:

0.4 m.

0.8 m.

1.6 m.

3.2 m.

impossible to say without knowing the viewing distance.

Question 2

The image of an object formed by a convex lens

Question options:

is always real and inverted.

is always real, inverted and diminished.

is always real, inverted and, diminished or magnified depending on the object distance.

can be virtual, upright and diminished depending on the object distance.

if it is virtual and upright, it is always magnified.

0.4 m.

0.8 m.

1.6 m.

3.2 m.

impossible to say without knowing the viewing distance.

Explanation / Answer

1.

The minimum size of such a mirror is half her height,

Lmin = 1.6 m / 2 = 0.8 m   [ANSWER]

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2.

If it is virtual and upright, it is always magnified.   [OPTION E, ANSWER]

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