SEBA Class 8 Science Important Chapter 16 Light

SEBA Class 8 Science Important Chapter 16 Light Solutions English Medium As Per SEBA New Syllabus to each chapter is provided in the list so that you can easily browse through different chapters SEBA Class 8 General Science Additional Solutions and select need one. SCERT Important Solutions For Class 8 General Science Download PDF. Important Notes for Class 8 Science SCERT.

SEBA Class 8 Science Important Chapter 16 Light

Also, you can read the NCERT book online in these sections Solutions by Expert Teachers as per Central Board of Secondary Education (CBSE) Book guidelines. Assam SEBA Board Class 8 Science Additional Question Answer are part of All Subject Solutions. Here we have given SCERT Class 8 General Science Important Notes for All Chapters, You can practice these here.

Light

Chapter: 16

PART – II

IMPORTANT QUESTION ANSWER

A. Very Short Type Question & Answer:

1. What is light?

Ans: Light is a form of energy that enables us to see objects.

2. What is reflection of light?

Ans: The bouncing back of light from a surface is called reflection.

3. Name the types of reflection.

Ans: Regular reflection and diffused (irregular) reflection.

4. What is lateral inversion?

Ans: The phenomenon in which the left appears as right and vice versa in a mirror image.

5. What is the function of the iris?

Ans: Iris controls the size of the pupil and the amount of light entering the eye.

6. What is a kaleidoscope?

Ans: A device that produces beautiful patterns using mirrors and colored glass.

7. Define dispersion of light.

Ans: The splitting of white light into its seven component colours is called dispersion.

8. What is a blind spot?

Ans: It is a spot on the retina where no vision is possible because it has no sensory cells.

9. What is the Braille system?

Ans: A reading and writing system for the visually challenged using raised dots.

10. What is a periscope used for?

Ans: A periscope is used to see over or around obstacles, especially in submarines.

B. Fill in the Blanks:

1. The bouncing back of light is called ________.

Ans. Reflection.

2. The splitting of white light into seven colours is known as ________.

Ans. Dispersion.

3. The device used to see behind obstacles is called a ______.

Ans. Periscope.

4. The part of the eye that controls the size of the pupil is the ________.

Ans. Iris.

5. The coloured part of the eye is called the _______.

Ans. Iris.

C. True or False:

1. A plane mirror forms a real image.

Ans. False.

2. The angle of incidence is equal to the angle of reflection.

Ans. True.

3. The retina is the transparent part of the eye.

Ans. False.

4. A kaleidoscope forms only one image.

Ans. False.

5. Braille system uses raised dots to represent letters.

Ans. True.