Скачать или смотреть Light–Reflection and Refraction - Important Numericals | Class 10 Physics Chapter 9 | CBSE 2024-25

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✅ In this video,

✔️ Class: 10th
✔️ Subject: Physics
✔️ Chapter: Light–Reflection and Refraction (Chapter 9)
✔️ Topic Name: Important Numericals
✔️ Topics Covered In This Video (By Tazmeen Ma'am): In this captivating video, Ma'am focuses on the 'Important Numericals' within Chapter 9 - "Light–Reflection and Refraction." Dive deep into the fascinating world of science as we explore key concepts vital for success in your studies. Join us as we simplify complex topics and make learning fun and engaging for all Class 10 students.
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00:00 Introduction: Light–Reflection and Refraction - Important Numericals
01:25 Important Numericals: (Que.1 & 2) Que.1 - A 5 cm tall object is placed perpendicular to the principal axis of a convex lens of focal length 20 cm. The distance of the object from the lens is 30 cm. Find the
16:06 Important Numericals: (Que.3 to 5) Que.3 - An object is placed at a distance of 25 cm away from a converging mirror of focal length 20 cm. Discus the effect on the nature and position of the image if the position of the object changes from 25 cm to 15 cm. Justify your answer without using mirror formula.
28:05 Important Numericals: (Que.6 to 8) Que.6 - It is desired to obtain an erect image of an object, using concave mirror of focal length of 12 cm.
53:00 Important Numericals: (Que.9 & 10) Que.9 - List the new Cartesian sign convention for reflection of light by spherical mirrors. Draw a diagram and apply these conventions for calculating the focal length and nature of a spherical mirror which forms a 1/3 times magnified virtual image of an object placed 18 cm in front of it.
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