Get here NCERT Solutions for Class 12 Physics Chapter 9. These NCERT Solutions for Class 12 of Physics subject includes detailed answers of all the questions in Chapter 9 – Ray Optics And Optical Instruments provided in NCERT Book which is prescribed for class 12 in schools.

Book: National Council of Educational Research and Training (NCERT)
Class: 12th Class
Subject: Physics
Chapter: Chapter 9 – Ray Optics And Optical Instruments

## NCERT Solutions for Class 12 Physics Chapter 9 – Ray Optics And Optical Instruments

Class 12th Physics Chapter 9 Ray Optics And Optical Instruments NCERT Solution is given below.

Question 9.1:
A small candle, 2.5 cm in size is placed at 27 cm in front of a concave mirror of radius of curvature 36 cm. At what distance from the mirror should a screen be placed in order to obtain a sharp image? Describe the nature and size of the image.
If the candle is moved closer to the mirror, how would the screen have to be moved?
Size of the candle, h = 2.5 cm
Image size = h’
Object distance, u = −27 cm
Radius of curvature of the concave mirror, R = −36 cm

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