Mirror Formula - Light: Reflection And Refraction | Class 10 Physics 2022-23

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Published on September 2, 2020 6:50:51 AM ● Video Link: https://www.youtube.com/watch?v=A6ETZh44dz0

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✔️ Class: 10th
✔️ Subject: Physics
✔️ Chapter: Light: Reflection And Refraction (Chapter 10 )
✔️ Topic Name: Mirror Formula - Light: Reflection And Refraction | Class 10 Physics Chapter 10 (2022-23)
✔️ Topics Covered In This Video (by Vibhuti Ma'am): This YouTube video provides a thorough overview of the Mirror Formula and Light Reflection and Refraction chapter from the Class 10 Physics syllabus in 2022-23. The video aims to help the students understand the concepts and their applications better. It will provide a step-by-step explanation of the fundamentals, equations and derivations of the topics. It will also explain how to apply these concepts to practical problems and offer tips and tricks to make it easier. This video will allow students to master the concepts with ease and clarity. It is presented by Vibhuti Mam, an expert in teaching science in an engaging way.
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00:00 Introduction: Light: Reflection And Refraction
00:04 Mirror Formula
04:14 Question & Solutions: Numerical: Light: Reflection And Refraction
Question. An object is placed at 25 cm in front of a concave mirror of focal length 15cm.
32:07 Website Overview
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Points covered in this video:-

Mirror Formula-
- Mirror formula is a relation between object distance (u), image distance (v) and focal length (f) of a spherical mirror.
- Distance (u) is distance of the object from the pole of the mirror.
- Distance (v) is distance of the image from the pole of the mirror and focal length (f) is the distance of principal focus of the mirror from the pole.
f = R/2
∴ The mirror formula can be written as 1/u + 1/v = 1/f = 2/R
This formula is valid in all situations for all spherical mirrors for all positions of object.

Numerical -
Question. An object is placed at 25 cm in front of a concave mirror of focal length 15cm. At what distance from the mirror should a screen be placed to obtain a sharp image?

Question. An object is placed at 25 cm in front of a convex mirror of radius of curvature 200cm. At what distance from the mirror should a screen be placed to obtain a sharp image?

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