Current Affairs

GK MCQs Section
Q. The speed of light will be minimum while passing through which of the following mediums?
Answer: Glass
Notes: Light travels at approximately 300,000 kilometers per second in a vacuum, which has a refractive index of 1.0, but it slows down to 225,000 kilometers per second in water and 200,000 kilometers per second in glass. Speed of light is the lowest in diamonds.

This Question is Also Available in:

हिन्दी
This question has been sourced from GKToday's "40000+ GK / General Studies MCQs for SSC & State PCS Exams" App Exclusive Course in GKToday Android Application which provides more than 40K General Knowledge and General Studies questions with explanations asked in all Competitive Exams of India.
📌 Question Number: 55 in Physics GK 19 - Light and Human Eye in the above course in App.