NEET Physics Prism MCQ Question
Which of the following statements about optical instruments and their functioning is correct?
The objective lens of a telescope forms a real image at its second focal point.
A convex lens can only form virtual images regardless of object placement.
The eyepiece of a telescope produces an upright image of the object.
Total internal reflection occurs when light travels from a denser medium to a rarer medium at any angle.
Correct Answer
Detailed Explanation
The objective lens of a telescope indeed forms a real image at its second focal point, which is then magnified by the eyepiece. Option B is incorrect as a convex lens can form both real and virtual images depending on object placement. Option C is misleading, as the final image produced by a telescope is inverted. Option D is false since total internal reflection only occurs above a specific critical angle.
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