Explain dispersion with the help of a diagram.

Important Questions on The Human Eye and Colourful World

EASY

10th CBSE

IMPORTANT

Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 5 - The Human Eye and Colourful World>Test Your Self Exercise 2>Q 4

Why danger signals are of red colour? 

MEDIUM

10th CBSE

IMPORTANT

Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 5 - The Human Eye and Colourful World>Test Your Self Exercise 2>Q 5

What is the Rayleigh’s law of scattering?

EASY

10th CBSE

IMPORTANT

Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 5 - The Human Eye and Colourful World>Test Your Self Exercise 2>Q 6

Why sun appears reddish during sunrise and sunset?

EASY

10th CBSE

IMPORTANT

Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 5 - The Human Eye and Colourful World>Test Your Self Exercise 2>Q 7

Explain the refraction of light through a glass prism with a labelled ray diagram. 

EASY

10th CBSE

IMPORTANT

Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 5 - The Human Eye and Colourful World>HIGHER ORDER THINKING SKILLS (HOTS)>Q 1

A student sitting at the back of the classroom cannot read clearly the letters written on the blackboard. What advice will a doctor give to her?

MEDIUM

10th CBSE

IMPORTANT

Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 5 - The Human Eye and Colourful World>HIGHER ORDER THINKING SKILLS (HOTS)>Q 2

A person's far point is $3$ metres and his near point is $50 \mathrm{cm}$. Find the nature, power of the lens he must use to read a book kept at the least distance of distinct vision.

EASY

10th CBSE

IMPORTANT

Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 5 - The Human Eye and Colourful World>HIGHER ORDER THINKING SKILLS (HOTS)>Q 2

A person's far point is $3$ metres and his near point is $50 \mathrm{cm}$. Find the nature, power of the lens he must use to see birds flying at a large distance.

EASY

10th CBSE

IMPORTANT

Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 5 - The Human Eye and Colourful World>HIGHER ORDER THINKING SKILLS (HOTS)>Q 3

A $14$ years old student is not able to see the questions written on a blackboard placed at a distance of $5 \mathrm{m}$ from him. Name the defect of vision, he is suffering from.