write 10 short questions and answers in 30 to 40 words of chapter light
Answers
Question 1.
What is light?
Answer:
Light is a form of energy which gives us the sensation of sight or vision.
Question 2.
What is a ray of light?
Answer:
The path along which light travels is called a ray of light.
Question 3.
What is a beam of light?
Answer:
A group of light rays originating from a source and travelling in some definite direction is known as a beam of light.
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Light Reflection and Refraction Class 10 Extra Questions with Answers Science Chapter 10
September 26, 2020 by Laxmi
In this page, you can find CBSE Class 10 Science Chapter 10 Extra Questions and Answers Light Reflection and Refraction Pdf free download, NCERT Extra Questions for Class 10 Science will make your practice complete.
Class 10 Science Chapter 10 Extra Questions and Answers Light Reflection and Refraction
Extra Questions for Class 10 Science Chapter 10 Light Reflection and Refraction with Answers Solutions
Light Reflection and Refraction Extra Questions Very Short Answer Type
Question 1.
What is light?
Answer:
Light is a form of energy which gives us the sensation of sight or vision.
Question 2.
What is a ray of light?
Answer:
The path along which light travels is called a ray of light.
Question 3.
What is a beam of light?
Answer:
A group of light rays originating from a source and travelling in some definite direction is known as a beam of light.
Question 4.
Define the term principal axis of a spherical mirror.
Answer:
The principal axis of a spherical mirror is the line joining the pole and the centre of curvature of a spherical mirror.
Question 5.
Name a communication device which uses light for its working.
Answer:
Optical fibres, which transmit many telephonic messages at the same time.
Question 6.
What is the angle of reflection when a ray of light falls normally on a plane mirror?
Answer:
The angle of reflection is 0°.
Question 7.
What kind of image can be obtained on the screen?
Answer:
Real image.
Question 8.
What type of image is formed:
(i) in a plane mirror, and
(ii) on a cinema screen?
Answer:
(i) Virtual image, and
(ii) real image.
Question 9.
Write two different uses of concave mirrors.
Answer:
Concave mirror are used in
Torches
Searchlights
headlights of vehicles, etc.
Question 10.
Name the type of mirror which always forms a virtual and diminished image.
Answer:
Convex mirror.
Please mark my answer as Brilliant please
Answer:
1. What is the difference between real and virtual images?
Ans: An image which can be projected on a screen is called real image and the image which can not be projected on screen is called virtual image.
2. What do you mean by lateral inversion?
Ans: In the image formed by a plane mirror there is an interchange of left and right side of object.This is called lateral vision