Physics · Light - Reflection and Refraction
An optical device X has a focal length of -30 cm. Based on the Cartesian sign convention, X can be:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
Share:
- 1Either a concave lens or a convex mirror
- 2Either a convex 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 concave lens or a concave mirror
Download Single Question PDF
Save this question and verified answer as a clean study sheet with live clickable link.
👥
Share with Friends & Study Groups
Challenge your peer aspirants on WhatsApp or Telegram to solve this question!
Online Test Series
Start Free Mock Test →Preparing for Physics?
Practice full-length mock tests with real exam timers, instant score analysis, and all-India ranking.
Chapter Practice
Practice Light - Reflection and Refraction MCQs →Want more practice questions on Light - Reflection and Refraction?
Solve complete topic-wise tests with detailed solutions on GkGet.
Related Practice Questions
Recommended practice questions in Physics · Light - Reflection and Refraction