Class 7 Exam > Class 7 Videos > Light moves in straight lines
Light moves in straight lines Video Lecture - Class 7
FAQs on Light moves in straight lines Video Lecture - Class 7
| 1. How does light travel? |  |
Ans. Light travels in straight lines. It moves in a straight path until it encounters an obstacle or changes medium, where it may bend or scatter.
| 2. What is the behavior of light when it encounters an obstacle? | |
Ans. When light encounters an obstacle, it can either be absorbed, transmitted, or reflected. The behavior of light depends on the nature of the obstacle and the properties of the surface it hits.
| 3. Can light change its path? | |
Ans. Yes, light can change its path when it travels from one medium to another. This phenomenon is called refraction. When light enters a new medium, it can bend or change direction due to the change in speed.
| 4. How does light behave when it passes through different materials? | |
Ans. When light passes through different materials, it can either be transmitted or absorbed. Transparent materials allow light to pass through, while opaque materials do not allow light to pass through and absorb it. Translucent materials partially transmit light.
| 5. Why does light travel in straight lines? | |
Ans. Light travels in straight lines due to the rectilinear propagation of light. This means that light travels in a straight path until it encounters an obstacle or changes medium. It follows the shortest distance between two points, resulting in straight-line motion.
Text Transcript from Video
have you seen a ray of sunlight coming
through your window early in the morning
doesn't the beam look straight let us
see if this is true take three cardboard
pieces with a hole at the same height
mounted on stands candle and a match box
place the cardboard pieces such that the
holes are in a straight line
now light a candle and place it on one
end of the cardboard piece
now try to look at the candle through
the hole in the last cardboard can you
see it
it is only visible when the eye the
holes and the candle are in a straight
line try moving one of the cardboard
pieces to one side of the light like
this the path of light will be
interrupted and you won't be able to see
the candle so we know now that light
travels along a straight path light is a
form of energy one of the
characteristics of light is that it
travels in a straight line this is known
as the rectilinear propagation of light
through your window early in the morning
doesn't the beam look straight let us
see if this is true take three cardboard
pieces with a hole at the same height
mounted on stands candle and a match box
place the cardboard pieces such that the
holes are in a straight line
now light a candle and place it on one
end of the cardboard piece
now try to look at the candle through
the hole in the last cardboard can you
see it
it is only visible when the eye the
holes and the candle are in a straight
line try moving one of the cardboard
pieces to one side of the light like
this the path of light will be
interrupted and you won't be able to see
the candle so we know now that light
travels along a straight path light is a
form of energy one of the
characteristics of light is that it
travels in a straight line this is known
as the rectilinear propagation of light
Related Exams
About this Video
|
2.9K Views |
|
4.88/5 Rating |
|
Nov 08, 2024 Last updated |
Light moves in straight lines for Class 72024 is part of Class 7 preparation. The notes and questions for Light moves in straight lines
have been prepared according to the Class 7 exam syllabus. Information about Light moves in straight lines covers all important topics
for Class 72024 Exam. Find important definitions, questions, notes, meanings, examples, exercises
and tests below for Light moves in straight lines.
Description
Video Lecture & Questions for Light moves in straight lines Video Lecture - Class 7 - Class 7 full syllabus preparation | Free video for Class 7 exam.
Information about Light moves in straight lines
Here you can find the Light moves in straight lines defined & explained in the simplest way possible. Besides explaining types of Light moves in straight lines
theory, EduRev gives you an ample number of questions to practice Light moves in straight lines tests, examples and also practice Class 7 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
Light moves in straight lines Video Lecture - Class 7
,Summary
,ppt
,past year papers
,mock tests for examination
,practice quizzes
,MCQs
,Free
,Light moves in straight lines Video Lecture - Class 7
,Extra Questions
,video lectures
,Previous Year Questions with Solutions
,Sample Paper
,study material
,Exam
,Light moves in straight lines Video Lecture - Class 7
,Important questions
,Objective type Questions
,Semester Notes
,shortcuts and tricks
,Viva Questions
;
Study Light moves in straight lines on the App
Students of Class 7 can study Light moves in straight lines alongwith tests & analysis from the EduRev app,
which will help them while preparing for their exam. Apart from the Light moves in straight lines,
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 Light moves in straight lines is prepared as per the latest Class 7 syllabus.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up
within 7 days!
within 7 days!
Takes less than 10 seconds to signup