Question

.HOTS (Higher Order Thinking Skills)
a. Why are concave lenses not used as magnifying glasses?​

Answer 1

Answer:

We can observe that in a concave lens, the light beam coming from the source diverges, so the image formed will be virtual and diminished. Therefore, a concave lens cannot be used as magnifying glass.

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Answer 2

Answer:

• if the object is within the focal length of the lens a virtual image is formed.light rays on the observer side are diverging but appear to come from a point corresponding to a larger upright (virtual) object.
• This is the case for the magnifying glass when used to magnify things.

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