★ NEW Preorder Ancient and Medieval Indian History ⚡️ Shipping from Aug 15^th ★ ★ NEW Prelims Cracker 2027 ⚡️ New Subjects from Sep 1^st 📞 Call Now: 9211591415 ★ ★ NEW GS Foundation 2027 ⚡️ Just Started ⬇️ Download Brochure 📞 Call Now: 9211591415 ★ ★ PMF IAS Impact 🎯 53 Direct Hits in Prelims 2025 and 🎯 46 Direct Hits in Prelims 2026 ★

★ NEW Preorder Ancient and Medieval Indian History ⚡️ Shipping from Aug 15^th ★ ★ NEW Prelims Cracker 2027 ⚡️ New Subjects from Sep 1^st 📞 Call Now: 9211591415 ★ ★ NEW GS Foundation 2027 ⚡️ Just Started ⬇️ Download Brochure 📞 Call Now: 9211591415 ★ ★ PMF IAS Impact 🎯 53 Direct Hits in Prelims 2025 and 🎯 46 Direct Hits in Prelims 2026 ★

Air bubble in water — UPSC Prelims PYQ 1995

An air bubble in water will act like a

convex mirror
convex lens
concave mirror
concave lens

Explanation

Option (d) is correct

An air bubble in water has a lower refractive index than the surrounding medium. It diverges light rays and behaves like a concave lens.

Answer: (d) Concave lens

1995, UPSC Prelims PYQs

Preorder Ancient and Medieval Indian History Book ()

UPSC CSE GS Foundation

Current Affairs A Z

Prelims Cracker Test Series for UPSC CSE Prelims ()

Economy Foundation

Polity & Governance Foundation

Science & Technology Foundation