Numericals (Part -2) - Light: Reflection And Refraction | Class 10 Physics
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4 سال پیش
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===============================================
📢 Full Playlist Link: Class 10 Physics (New Session 2023-24...
✅ In this video,
✔️ Class: 10th
✔️ Subject: Physics
✔️ Chapter: Light: Reflection And Refraction (Chapter 10)
✔️ Topic Name: Numerical - Light: Reflection And Refraction (Part 2) | Class 10 Physics Chapter 10
✔️ Topics Covered In This Video (by Vibhuti Ma'am): This YouTube video is perfect for students in Class 10 who are studying Science, especially those preparing for their board exams. In this video, Vibhuti Mam explains the concept of light and its related topics, namely Reflection and Refraction, in detail. The video also offers solutions to numerical problems, helping viewers understand the theories better and answer their questions. This video is a great resource for those who want to get a better understanding and have their doubts cleared.
===============================================
00:00 Introduction: Light: Reflection And Refraction
00:03 Numerical of Light Reflection And Refraction
14:22 Website Overview
===============================================
Why study from Magnet Brains?
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Points covered in this video:-
Question. When a concave mirror is placed facing the sun, the sun’s rays converge to a point 10 cm from the mirror. Now, if you place a 2 cm long candle flame 20 cm away on the principal axis of the mirror, where would you place a screen to obtain the image of the candle? What would be the size of the image? Draw a ray diagram to justify your answer?
Solution. As sun’s rays converge to a point 10 cm from the concave mirror, therefore, focal length of mirror f = -(10)cm. Now,
h1 = 2 cm, u = -20 cm, v =?
From,
1/v + 1/u = 1/f
1/ v = 1/f - 1/u
1/v = 1/(-10) - 1/(-20)
1/v = -1/20
v = -20 cm
As, h2/h1 = -v/u = - (-20/-20) = -1
h2 = -h1 = -2 cm
Minus sign is for inverted image. The course of ray is as shown in figure
A’B’ is real, inverted image of AB at C only.
Question. It is desired to obtain an erect image of an object using a concave mirror of focal length 12 cm.
What should be the range of object distance in this case?
Will the image be smaller or larger than the object/ draw a ray diagram to show the formation of image in this case.
Where will the image of this object be, if it is placed 24 cm in front of the mirror?
solved numericals on light reflection and refraction for class 10 pdf download
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numericals on refraction of light class 10
chapter 10 science class 10 extra questions numericals
class 10 science chapter 10 test paper
light reflection and refraction class 10 important questions with answers
difficult questions of light class 10
light reflection and refraction numericals
#class10light #lightreflection #class10physics #class10science #magnetbrains
Disclaimer: "This video is for educational and informational purposes only and is not intended to infringe on any copyrights. If you believe that this video has used any copyrighted material in a way that constitutes copyright infringement, please contact us at [email protected] and we will take appropriate action."
👉Next Video: Daily Practice Questions (Part 4) - L...
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===============================================
📢 Full Playlist Link: Class 10 Physics (New Session 2023-24...
✅ In this video,
✔️ Class: 10th
✔️ Subject: Physics
✔️ Chapter: Light: Reflection And Refraction (Chapter 10)
✔️ Topic Name: Numerical - Light: Reflection And Refraction (Part 2) | Class 10 Physics Chapter 10
✔️ Topics Covered In This Video (by Vibhuti Ma'am): This YouTube video is perfect for students in Class 10 who are studying Science, especially those preparing for their board exams. In this video, Vibhuti Mam explains the concept of light and its related topics, namely Reflection and Refraction, in detail. The video also offers solutions to numerical problems, helping viewers understand the theories better and answer their questions. This video is a great resource for those who want to get a better understanding and have their doubts cleared.
===============================================
00:00 Introduction: Light: Reflection And Refraction
00:03 Numerical of Light Reflection And Refraction
14:22 Website Overview
===============================================
Why study from Magnet Brains?
Magnet Brains is an online education platform that helps give You NCERT/CBSE curriculum based free full courses from Kindergarten to Class 12th so that you can perform well in any and all exams you give in your academic career.
👉 Contact us 🤑🤑
➡️ Connect with us : [email protected]
➡️ Website : https://www.magnetbrains.com
➡️ Subscribe to us on YouTube: @magnetbrainseducation
➡️ Subscribe to Magnet Brains Hindi Medium : @magnetbrainshindimedium
➡️ Facebook : Facebook: Magnet-Brains-Education-110955641184512
➡️ Instagram : Instagram: magnetbrains
➡️ Telegram : https://t.me/magnetbrainsbhopal
Points covered in this video:-
Question. When a concave mirror is placed facing the sun, the sun’s rays converge to a point 10 cm from the mirror. Now, if you place a 2 cm long candle flame 20 cm away on the principal axis of the mirror, where would you place a screen to obtain the image of the candle? What would be the size of the image? Draw a ray diagram to justify your answer?
Solution. As sun’s rays converge to a point 10 cm from the concave mirror, therefore, focal length of mirror f = -(10)cm. Now,
h1 = 2 cm, u = -20 cm, v =?
From,
1/v + 1/u = 1/f
1/ v = 1/f - 1/u
1/v = 1/(-10) - 1/(-20)
1/v = -1/20
v = -20 cm
As, h2/h1 = -v/u = - (-20/-20) = -1
h2 = -h1 = -2 cm
Minus sign is for inverted image. The course of ray is as shown in figure
A’B’ is real, inverted image of AB at C only.
Question. It is desired to obtain an erect image of an object using a concave mirror of focal length 12 cm.
What should be the range of object distance in this case?
Will the image be smaller or larger than the object/ draw a ray diagram to show the formation of image in this case.
Where will the image of this object be, if it is placed 24 cm in front of the mirror?
solved numericals on light reflection and refraction for class 10 pdf download
numericals on light class 10 pdf
numericals on refraction of light class 10
chapter 10 science class 10 extra questions numericals
class 10 science chapter 10 test paper
light reflection and refraction class 10 important questions with answers
difficult questions of light class 10
light reflection and refraction numericals
#class10light #lightreflection #class10physics #class10science #magnetbrains
Disclaimer: "This video is for educational and informational purposes only and is not intended to infringe on any copyrights. If you believe that this video has used any copyrighted material in a way that constitutes copyright infringement, please contact us at [email protected] and we will take appropriate action."
4 سال پیش
در تاریخ 1399/06/12 منتشر شده
است.
102,195
بـار بازدید شده