EASY
10th CBSE
IMPORTANT
Earn 100

How will you use two identical prisms so that a narrow beam of white light incident on one prism emerges out of second prism as white light? Draw the diagram.

Important Questions on The Human Eye and The Colourful World

EASY
10th CBSE
IMPORTANT
SCIENCE PHYSICS>Chapter 2 - The Human Eye and The Colourful World>EXERCISES>Q 2
Is the position of star as seen by us its true position? Justify your answer.
EASY
10th CBSE
IMPORTANT
SCIENCE PHYSICS>Chapter 2 - The Human Eye and The Colourful World>EXERCISES>Q 3
A person needs a lens of power -4.5 D for correction of her vision.
(a) What kind of defect is she suffering from?
(b) What is the focal length of corrective lens?
(c) What is the nature of corrective lens?
EASY
10th CBSE
IMPORTANT
SCIENCE PHYSICS>Chapter 2 - The Human Eye and The Colourful World>EXERCISES>Q 3
What is the difference in colours of sun during sunrise/sunset and noon? Give explanation for each.
MEDIUM
10th CBSE
IMPORTANT
SCIENCE PHYSICS>Chapter 2 - The Human Eye and The Colourful World>EXERCISES>Q 3
Why do different colours get separated when white light passes through prism? How can we recombine the components of white light after a prism has separated them? Explain with the help of a figure.
MEDIUM
10th CBSE
IMPORTANT
SCIENCE PHYSICS>Chapter 2 - The Human Eye and The Colourful World>EXERCISES>Q 4
Name different eye parts and explain their functions. Explain how image is formed on the retina of the eye with the help of a diagram.
MEDIUM
10th CBSE
IMPORTANT
SCIENCE PHYSICS>Chapter 2 - The Human Eye and The Colourful World>EXERCISES>Q 4
What is myopia? List its causes. Draw a ray diagram to show
(a) myopic eye
(b) correction of myopic eye using a suitable lens.
MEDIUM
10th CBSE
IMPORTANT
SCIENCE PHYSICS>Chapter 2 - The Human Eye and The Colourful World>EXERCISES>Q 4
What is hypermetropia? List its causes. Draw a ray diagram to show
(a) hypermetropic eye
(b) correction of hypermetropia using suitable lens.
HARD
10th CBSE
IMPORTANT
SCIENCE PHYSICS>Chapter 2 - The Human Eye and The Colourful World>EXERCISES>Q 5
A convex lens forms a sharp image on the screen for a particular position of an object with respect to the lens. A human eye is also a convex lens but it can form sharp images on the retina of eye for different positions of objects. Why?