1.

Which of the following lenses would you prefer to use while reading small letters found in a dictionary?(a) A convex lens of focal length 50 cm(b) A concave lens of focal length 50 cm(c) A convex lens of focal length 5 cm(d) A concave lens of focal length 5 cm

Answer»

Which of the following lenses would you prefer to use while reading small letters found in a dictionary?



(a) A convex lens of focal length 50 cm



(b) A concave lens of focal length 50 cm



(c) A convex lens of focal length 5 cm



(d) A concave lens of focal length 5 cm



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