Q: Which one of the following statements regarding lenses is not correct?
(a)A convex lens produces both real and virtual images.
(b)A concave lens produces both real and virtual images.
(c)A convex lens can produce images equal, greater and smaller than the size of the object.
(d)A concave lens always produces images smaller than the size of the object.
Correct Answer: (b)
The correct answer is (a) 'एक उत्तल लेंस वास्तविक और आभासी दोनों प्रतिच्छवियाँ बनाता है।'. This question from the General Studies domain tests knowledge of Miscellaneous.