Online GK Series

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

Get Attractive Job

Physics - General Science Objective Questions and Answers for Competitive Exams

Q.

Spectacles used for viewing 3D films have

A Polaroids
B Concave lens
C Convex lens
D Bifocal lens
Answer & Explanation
Option: [A]

Your Valuable Comments Please...

Important EBooks for Competitive Exams

VIEW ALL