HARD
10th CBSE
IMPORTANT
Earn 100

Explain the refraction of light through a triangular glass prism using a labelled ray diagram. Hence, define the angle of deviation.

Important Questions on Human Eye and Colourful World

EASY
10th CBSE
IMPORTANT
Core Science Physics>Chapter 2 - Human Eye and Colourful World>EXERCISE - 2A>Q 3
The ciliary muscles help in:
EASY
10th CBSE
IMPORTANT
Core Science Physics>Chapter 2 - Human Eye and Colourful World>EXERCISE - 2A>Q 4
When a person sees nearer objects, such as reading a book, the image is formed:
MEDIUM
10th CBSE
IMPORTANT
Core Science Physics>Chapter 2 - Human Eye and Colourful World>EXERCISE - 2B>Q 2
How can we explain the reddish appearance of sun at sunrise or sunset? Why does it not appear red at noon?
HARD
10th CBSE
IMPORTANT
Core Science Physics>Chapter 2 - Human Eye and Colourful World>EXERCISE - 2B>Q 3
Explain the phenomenon of dispersion of white light through a glass prism, using suitable ray diagram.
HARD
10th CBSE
IMPORTANT
Core Science Physics>Chapter 2 - Human Eye and Colourful World>EXERCISE - 2B>Q 4
How does refraction take place in the atmosphere? Why do stars twinkle but not the planets?
HARD
10th CBSE
IMPORTANT
Core Science Physics>Chapter 2 - Human Eye and Colourful World>EXERCISE - 2B>Q 5
What is dispersion of white light? What is the cause of such dispersion? Draw a diagram to show dispersion of white light by a glass prism.
HARD
10th CBSE
IMPORTANT
Core Science Physics>Chapter 2 - Human Eye and Colourful World>EXERCISE - 2B>Q 5
A glass prism is able to produce a spectrum when white light passes through it, but a glass slab does not produce any spectrum. Explain, why it is so?
HARD
10th CBSE
IMPORTANT
Core Science Physics>Chapter 2 - Human Eye and Colourful World>EXERCISE - 2B>Q 6
Explain how the ray of white light is dispersed. Why does this take place? Which colour deviates more? Why?