GK
GENERAL SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A magnifying glass is a:
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convex lens
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concave lens
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both of these
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none of these
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Explanation:
Detailed explanation-1: -A magnifying glass is a convex lens used to make an object appear much larger than it actually is. This works when the object is placed at a distance less than the focal length from the lens.
Detailed explanation-2: -Convex mirrors are widely used for making magnifying glasses. In order to make a magnifying glass, two convex mirrors are placed back to back.
Detailed explanation-3: -We already knew that Magnifying glasses are frequently made with convex mirrors. As we found that convex lenses refract rays so that they converge, we made sure that convex mirrors make objects appear larger.
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