Physics · Light - Reflection and Refraction
An optical device Y has a positive focal length according to the Cartesian sign convention. Device Y can be:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1either a convex lens or a convex mirror✓
- 2either a concave lens or a convex mirror
- 3either a convex lens or a concave mirror
- 4either a concave lens or a concave mirror
Correct answer
either a convex lens or a convex mirror
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