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

NCERT Solutions for Class 12 Physics Chapter 9 Ray Optics and Optical Instruments: The NCERT solutions for Class 12 Physics Chapter 9 provided by Embibe is the best study material for examination. The Ray Optics chapter is based on the properties of light as it passes through convex and concave lens media. Also, this chapter uses ray diagrams to demonstrate the straight-line propagation of light.

Total internal reflection and power of a lens are a few of the important topics discussed thoroughly in this chapter. Embibe offers 200+ practice questions from this chapter to enhance students’ learning skills. These practice questions by Embibe help students understand around 120 different concepts from Ray Optics and Optical Instruments. Moreover, the Embibe Explainers benefit students preparing for the exam as they explore new topics. Visit Embibe to learn more while studying.

Explore Study Material for CBSE Class 12 Physics Chapter 1 Here

## NCERT Solutions for Class 12 Physics Chapter 9: Important Topics

The NCERT Class 12 Physics Chapter 9 solutions are very important to prepare for the CBSE board exam. This chapter gives understanding about the image formation by spherical lenses and spherical mirrors. It also discusses the focal length of spherical mirrors in addition to these topics.

The three light phenomena, i.e. reflection, refraction, and dispersion, are thoroughly explained in this chapter. Finally, the chapter discusses the eye, microscopes, and telescopes. Embibe offers free 3D videos to understand the concepts in-depth. Students can also use free exemplars and explainers to prepare for exams. So, boost the exam preparation with Embibe’s AI assistance.

Below we have provided the important topics covered in CBSE Class 12 Physics Chapter 9:

### NCERT Solutions for Class 12 Physics Chapter 9: Points to Remember

Some of the important points to remember from this chapter are as follows:

• The phenomenon of changing the path of light without changing the medium is known as reflection.
• Therefore, a reflection of light is the return of light in the same medium from which it came after striking a surface.
• Total internal reflection occurs when light is completely reflected as it travels from a denser medium to a rarer medium.
• The focal length of the eye lens can be adjusted so that the image is always formed on the retina by the eye’s ability known as accommodation.
• Also, the incident, reflected, and normal rays exist in the same plane.
• Moreover, distances measured parallel to the incident light are positive; while distances measured perpendicular to the incident light are negative.
• The focal length (f) of a concave mirror is negative, while it is positive for a convex mirror.
• The splitting of light into its constituent colours is known as dispersion.
• Also, the medium’s refractive index is affected by the frequency of the light.

Check out all the important points for CBSE Class 12 Physics Chapter 9 at Embibe.

## NCERT Solutions for Class 12 Physics: All Chapters

The detailed NCERT Solutions for Class 12 Physics of other chapters are given below:

Also Check,

Related Information of CBSE Class 12

## FAQs

Q.1: How many practice questions for Class 12 Physics Chapter 9 are available on Embibe?

Ans: There are 200+ practice questions available for Class 12 Physics Chapter 9 on Embibe.

Q.2: What is the name of Class 12th Physics chapter 9?

Ans: NCERT solutions for Class 12 Physics deals with the chapter Ray Optics & Optical Instruments.

Q.3: Are Embibe’s NCERT Class 12 Physics solutions for chapter 9 available for free?

Ans: Yes, the NCERT solutions for Class 12 Physics Chapter 9 provided by Embibe are free.

Q.4: How many units are there in Class 12 Physics chapter 9?

Ans. There are nine units with some sub-units in NCERT Solutions for Class 12 Physics Chapter 9.

Q.5: Does Embibe provide books to study for Class 12 Physics Chapter 9?

Ans: Yes, Embibe provides several books for free. Students can access all the subject books on Embibe.