Online GK Series

This site is dedicated to the aspirants of competitive exams SSC, UPSC, Railways, Postal Assistants, Bank, GATE and NET


An air bubble in water will act like a:

A Concave lens
B Concave mirror
C Convex lens
D Convex mirror
Answer & Explanation
Option: [A]
gkseries helpul

Your Valuable Comments Please...

Important EBooks for Competitive Exams