Which of the following statements is/are true? [NCERT Exemplar Problems]
(a) A convex lens has 4 dioptre power having a focal length 0.25 m
(b) A convex lens has -4 dioptre power having a focal length 0.25 m
(c) A concave lens has 4 dioptre power having a focal length 0.25 m
(d) A concave lens has – 4 dioptre having a focal 0.25 m
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Answer:
A)A convex lens has 4 dioptre power having a focal length 0.25 m
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0
Answer:
The correct answer is given below: -
(a) A convex lens has 4 dioptre power having a focal length 0.25m
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