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InterviewSolution
| 1. |
Which of the following lenses would you prefer to use while reading small letters found in a dictionary ?A. Convex lens of focal length 50 cmB. A concave lens of focal length 50 cmC. A convex lens of focal length 5 cmD. A concave lens of focal length 5 cm. |
| Answer» For reading small letters in a dictionary, we need to use a convex lens of smaller focal length. Choice ( c) is correct. | |