CBSE Class 10 Physics Light - Reflection and Refraction Notes

Scroll down for PDF

CBSE Class 10 Physics Light - Reflection and Refraction Notes. Learning the important concepts is very important for every student to get better marks in examinations. The concepts should be clear which will help in faster learning. The attached concepts made as per NCERT and CBSE pattern will help the student to understand the chapter and score better marks in the examinations. For more study material for physics click here - cbse class 10 physics notes.

Class X: Physics

Chapter 10: Light- Reflection and Refraction

Points to remember

Key learnings:

1. When light falls on a body, it may be absorbed, may be transmitted or light may come back to the same medium.

2. Reflection of a light means light waves are neither transmitted nor absorbed but are deflected from the surface of the medium back into the same medium.

3. Laws of Reflection:

First law of reflection: The incident ray, the normal to the surface at the point of incidence and the reflected ray, all lie in the same plane.

Second law of reflection: The angle of incidence is equal to the angle of reflection.

4. Real image is obtained when the rays of light after reflection, actually converge at a point. It can be obtained on the screen and can be seen with the eye.

5. Virtual image forms when rays of light do not actually meet, but appear to meet when produced backwards. It cannot be obtained on the screen.

6. Characteristics of the image formed by the plane mirror:

i. The image formed by a plane mirror is always virtual and erect.

ii. Size of image = Size of object and the image is laterally inverted.

iii. The image formed by the plane mirror is as far behind the mirror as the object is in front.

7. Lateral Inversion: The phenomenon due to which the right side of the object appears as left and the left side of the object appears as right. That is the image is inverted sideways.

8. A spherical mirror whose reflecting surface is curved outwards and polished on the inner spherical surface is convex mirror.

9. A spherical mirror whose reflecting surface is curved inwards and polished on the outer spherical surface is concave mirror.

10. Concave mirror mostly forms real images, which can be received on the screen.

11. Convex mirror forms virtual images, which cannot be received on the screen.

12. Differentiating between a plane mirror, a concave mirror and a convex mirror, without touching them:

i) If the image formed is erect and is of same size as in reality then it is a plane mirror.

ii) If the image formed is still erect but smaller in size then it is a convex mirror.

iii) If the image is erect but magnified when mirror is close to the object then it is a concave mirror.

13. Solar concentrators use huge concave mirrors to focus large amounts of solar energy thereby producing high temperature conditions in a solar power plant.

Please click the link below to download pdf file for CBSE Class 10 Physics Light - Reflection and Refraction Notes.

Tags: 


Click on the text For more study material for Physics please click here - Physics

Latest NCERT & CBSE News

Read the latest news and announcements from NCERT and CBSE below. Important updates relating to your studies which will help you to keep yourself updated with latest happenings in school level education. Keep yourself updated with all latest news and also read articles from teachers which will help you to improve your studies, increase motivation level and promote faster learning

Extension of dates by CBSE for Single Girl Child Merit (SGC) scholarship

CBSE has announced to extend dates for SGC scholarship. Previously the dates to submit the SGC scholarship form were 18 October 2019. Now dates have shifted. For online submission, the last date is 31st October. Whereas date for submission of hard copies of renewal...

TIPS: Study habits for success

Being a student is fairly a difficult job. Alongside maintaining your curricular as well as extra-curricular activities adds more to it. Performance in academics is one of the major concerns. Every parent now tries to get their children more indulged in studies. Need...

CBSE DATE SHEET 2020

Central Board of Secondary Education, CBSE is to conduct the 10th and 12th Board Examination 2020 from February 15, 2020. Due to University Admissions, CBSE has shifted Board Exams dates from 1 March to February 15 from 2019. This year too CBSE would be making changes...

JEE in Punjabi too after English, Hindi and Gujarati

Punjab Minister Tript Rajinder Singh Bajwa requested the joint technology entrance exam (main) to be conducted in Punjabi and other regional languages too. In his letter to Union HRD Minister Ramesh Pokhriyal Nishank, the Punjab Minister for Higher Education and...

Requirements for admissions in CBSE affiliated Schools

CBSE gives an advanced form of education. They try to indulge students in interactions and teach application based subjects along with some others. Due to this preponderance of parents, they tend to admit their children in CBSE affiliated schools. General conditions...

×
Studies Today