Mathematics · Optics
A concave mirror forms a real image of an object. If the object distance (u) is -30 cm and the image distance (v) is -15 cm, calculate the focal length (f) of the mirror.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
Share:
- 1-10 cm✓
- 2-30 cm
- 310 cm
- 430 cm
Correct answer
-10 cm
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 Mathematics?
Practice full-length mock tests with real exam timers, instant score analysis, and all-India ranking.
Chapter Practice
Practice Optics MCQs →Want more practice questions on Optics?
Solve complete topic-wise tests with detailed solutions on GkGet.
Related Practice Questions
Recommended practice questions in Mathematics · Optics