Q.

Is it true that a concave lens is a diverging lens?


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a

True

b

False 

answer is A.

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Detailed Solution

The above statement is true.
"A transparent glass which diverges or converges the rays of light that fall on it is known as lens." A lens that is bulged inwards at the centre and thicker at the periphery is known as a concave lens. When a beam of parallel rays passes through a concave lens, they diverge from each other and seem to be coming from a point known as the lens's focus. This is the reason why a concave lens is also called a diverging lens.
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Is it true that a concave lens is a diverging lens?