What do you mean by the persistence of vision?

Important Questions on The Human Eye and Colourful World

HARD

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 1>Q 5

Draw a neat labelled diagram of the human eye.  

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 1>Q 6

What is myopia? How is it caused? How can it be corrected? Explain with the help of a diagram.

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 1>Q 7

Make a diagram to show how hypermetropia can be corrected. The near point of a hypermetropia eye is $1 \mathrm{m}$. What is the power of the lens required to correct this defect? Assume that the near point of the normal eye is $25 \mathrm{cm}$. 

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 1

What is the angle of deviation in the diagram given below?

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 2

What does $PQ$ and $x$ represent?
 

HARD

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 3

Explain dispersion with the help of a diagram.

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?