Focal length of concave mirror even in water is same at 20 cm.
Class 12 Physics
Chapter 9 Ray Optics and Optical Instruments Session 2024-2025.
A concave mirror of 20 cm focal length is immersed into water. What is its new focal length?
Share
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Focal length of concave mirror even in water is same at 20 cm.
Class 12 Physics
Chapter 9 Ray Optics and Optical Instruments Session 2024-2025.
The focal length of a concave mirror does not change when immersed in water because it depends only on the mirror’s geometry and not the surrounding medium. Thus, its focal length remains 20 cm.
For more visit here:
https://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-9/