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Question 13Asked in RRB JE CBT-1, 19 Feb 2026, Shift 2 (12:45 PM)

A solar cooker uses a mirror to concentrate sunlight onto a vessel. Which type of mirror

A solar cooker uses a mirror to concentrate sunlight onto a vessel. Which type of mirror is used and what property makes it suitable?
  1. AA convex mirror because it provides a wide field of view
  2. BA concave mirror because it focuses parallel sunlight to a single point
  3. CA plane mirror because it reflects light uniformly
  4. DA convex mirror because it spreads light over a large area
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Correct answer: (B) A concave mirror because it focuses parallel sunlight to a single point

From RRB JE CBT-1 PYQ 19 Feb 2026, Shift 2 (12:45 PM)

This is question 13 of RRB JE CBT-1 PYQ 19 Feb 2026, Shift 2 (12:45 PM). See all questions of this paper with answers, or attempt the paper as a timed online test to get your score and all-India rank.