Class 7 Exam  >  Class 7 Notes  >  Science Class 7  >  Mindmap: Light

Mindmap: Light | Science Class 7 PDF Download

Mindmap: Light | Science Class 7

The document Mindmap: Light | Science Class 7 is a part of the Class 7 Course Science Class 7.
All you need of Class 7 at this link: Class 7
111 videos|246 docs|28 tests

Top Courses for Class 7

FAQs on Mindmap: Light - Science Class 7

1. What is light?
Ans. Light is a form of electromagnetic radiation that is visible to the human eye. It is a type of energy that travels in waves and can be described as both a particle and a wave.
2. How does light travel?
Ans. Light travels in straight lines called rays. It can travel through a vacuum, like space, or through various materials such as air, water, or glass. When light encounters a different medium, it can be reflected, refracted, or absorbed.
3. What are the different colors of light?
Ans. Light consists of a spectrum of colors, including red, orange, yellow, green, blue, indigo, and violet. These colors are produced by the different wavelengths of light. When all the colors are combined, they appear as white light.
4. What is the speed of light?
Ans. The speed of light is approximately 299,792 kilometers per second (km/s) in a vacuum. This speed is considered to be the fastest possible speed in the universe and plays a fundamental role in many aspects of physics.
5. How is light used in everyday life?
Ans. Light has numerous applications in our daily lives. It allows us to see and perceive our surroundings, helps in communication through optical fibers, enables vision in cameras and microscopes, and is used in various technologies such as lasers, LED lights, and solar panels. Light also plays a crucial role in photography, art, and entertainment industries.
111 videos|246 docs|28 tests
Download as PDF
Explore Courses for Class 7 exam

Top Courses for Class 7

Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev
Related Searches

Mindmap: Light | Science Class 7

,

Extra Questions

,

mock tests for examination

,

video lectures

,

Exam

,

study material

,

Mindmap: Light | Science Class 7

,

ppt

,

MCQs

,

shortcuts and tricks

,

Semester Notes

,

Objective type Questions

,

practice quizzes

,

Viva Questions

,

Mindmap: Light | Science Class 7

,

Summary

,

Important questions

,

Sample Paper

,

Previous Year Questions with Solutions

,

pdf

,

past year papers

,

Free

;