Science, asked by sumitrai993127, 2 months ago

a concave mirror of radius 30 cm is placed in water. It's focal length in air and water differ by

Answers

Answered by DANGERADITYA3616

ANSWER-

The focal length in air and water differ by 15 cm.

The focal length in air and water differ by 15 cm.As we know that the focal length is half of the radius of curvature. Thus, the focal length in air and water differ by 15 cm...

PLEASE MARK ME BRAINLIST ✌️..

Answered by franktheruler

Its (Concave mirror's) focal length in air and water differ by 0.

When light is incident on a mirror, whether it be a concave mirror, convex mirror, or plane mirror, then reflection takes place.
The incident ray of light collides with the surface of the mirror and then travels back into the same medium. Thus, no medium change takes place in the case of the concave mirror.
Therefore, the focal length of the concave mirror in water will also be 30 cm in this case.

Previous Question

Next Question

Similar questions

English, 1 month ago

How did the headmaster advise the students to use their vacation? class 7th new pathways...

Science, 1 month ago

Striated muscles are also called ____ muscles.

Math, 1 month ago

1.5 मी लांब, 1.2 मी रुंद आणि 2 मी उंच असणाऱ्या इष्टिकाचिती आकाराच्या टाकीत 3/4 भाग पाणी भरलेले आहे. 12 ली मापाच्या बादलीने तो राहिलेला भाग भरल्यास त्यासाठी किती बादल्या पाणी लागेल ? 1) 225 2) 120 3) 75 4) 90...

Social Sciences, 2 months ago

East India Company and the start of British rule in India by mentioning the years as well. Paste pictures or draw to make your chart attractive.

Math, 2 months ago