https://www.geekmcq.com/
CSS Solved Papers
Physics Chemistry

Engineering :: Environmental Engineering

  What is a laser?
[A]. Electro-magnetic waves[B]. Ultrasonic waves
[C]. Supersonic waves[D]. Light amplification by stimulated emission of radiation

Answer: Option D
Write your comments here:
Name *:     Email:

© 2012-2024 by GeekMCQ™ Technologies. All Rights Reserved | Copyright | Terms of Use & Privacy Policy | Referals

Contact us: info@geekmcq.com