Class 7 Exam > Class 7 Videos > Science Class 7 > Uses of Concave Mirror
Uses of Concave Mirror Video Lecture | Science Class 7
|
111 videos|246 docs|28 tests
|
FAQs on Uses of Concave Mirror Video Lecture - Science Class 7
| 1. What is a concave mirror and how is it different from a convex mirror? |  |
A concave mirror is a curved mirror that has a reflecting surface that curves inward. It is different from a convex mirror, which has a reflecting surface that curves outward. The shape of the concave mirror causes light rays that strike it parallel to its principal axis to converge and meet at a focal point in front of the mirror, whereas a convex mirror causes the light rays to diverge.
| 2. What are the uses of a concave mirror? | |
Concave mirrors have several practical applications. One common use is in optical devices such as telescopes and microscopes, where they are used to gather and focus light. They are also used in headlights of cars to produce a strong beam of light. Concave mirrors are also used in shaving mirrors and makeup mirrors to magnify the reflection and provide a clearer view. Additionally, they are used in solar power plants to concentrate sunlight onto a small area for generating heat or electricity.
| 3. How does a concave mirror form an image? | |
When an object is placed in front of a concave mirror, the mirror reflects the light rays that strike it. The shape of the mirror causes the rays to converge and meet at a point called the focal point. The image formed by a concave mirror can be real or virtual, depending on the position of the object relative to the mirror. If the object is placed beyond the focal point, a real inverted image is formed. If the object is placed between the focal point and the mirror, a virtual upright image is formed.
| 4. Can a concave mirror be used to see a larger image of an object? | |
Yes, a concave mirror can be used to see a larger image of an object. When an object is placed between the focal point and the mirror, a virtual upright image is formed that appears larger than the actual object. This is commonly observed in makeup mirrors and shaving mirrors, where the concave shape of the mirror magnifies the reflection and provides a clearer and larger view of the face.
| 5. How does a concave mirror contribute to solar power generation? | |
Concave mirrors are used in solar power plants to concentrate sunlight onto a small area. The mirror's shape helps focus the sunlight and direct it onto a receiver, such as a pipe containing a fluid or a photovoltaic cell. By concentrating the sunlight, the concave mirror increases the intensity of the light, which can then be used to generate heat or electricity. This allows for more efficient solar power generation and makes it possible to harness the sun's energy for various applications.
About this Video
|
3K Views |
|
4.81/5 Rating |
|
Dec 23, 2024 Last updated |
Video Description: Uses of Concave Mirror for Class 7 2024 is part of Science Class 7 preparation.
The notes and questions for Uses of Concave Mirror have been prepared according to the Class 7 exam syllabus.
Information about Uses of Concave Mirror covers all important topics for Class 7 2024 Exam.
Find important definitions, questions, notes, meanings, examples, exercises and tests below for Uses of Concave Mirror.
Introduction of Uses of Concave Mirror in English is available as part of our Science Class 7 for Class 7 & Uses of Concave Mirror in
Hindi for Science Class 7 course. Download more important topics related with notes, lectures and mock test series for
Class 7 Exam by signing up for free.
Description
Video Lecture & Questions for Uses of Concave Mirror Video Lecture | Science Class 7 - Class 7 full syllabus preparation | Free video for Class 7 exam to prepare for Science Class 7.
Information about Uses of Concave Mirror
Here you can find the meaning of Uses of Concave Mirror defined & explained in the simplest way possible.
Besides explaining types of Uses of Concave Mirror theory, EduRev gives you an ample number of questions to practice Uses of Concave Mirror tests,
examples and also practice Class 7 tests.
|
111 videos|246 docs|28 tests
|
|
Explore Courses for Class 7 exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
Related Searches
Summary
,mock tests for examination
,ppt
,Exam
,practice quizzes
,study material
,Uses of Concave Mirror Video Lecture | Science Class 7
,shortcuts and tricks
,MCQs
,Viva Questions
,Semester Notes
,past year papers
,video lectures
,Sample Paper
,Uses of Concave Mirror Video Lecture | Science Class 7
,Objective type Questions
,Uses of Concave Mirror Video Lecture | Science Class 7
,Extra Questions
,Free
,Important questions
,Previous Year Questions with Solutions
;
Study Uses of Concave Mirror on the App
Students of Class 7 can study Uses of Concave Mirror alongwith tests & analysis from the EduRev app,
which will help them while preparing for their exam. Apart from the Uses of Concave Mirror,
students can also utilize the EduRev App for other study materials such as previous year question papers, syllabus, important questions, etc.
The EduRev App will make your learning easier as you can access it from anywhere you want.
The content of Uses of Concave Mirror is prepared as per the latest Class 7 syllabus.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup