EASY
10th CBSE
IMPORTANT
Earn 100

What is dispersion of light? What is the cause of dispersion? Draw a diagram to show the dispersion of white light by a glass prism.

Important Questions on Human Eye and the Colorful World

EASY
10th CBSE
IMPORTANT
What is a spectrum? How would you produce a spectrum in a laboratory?
MEDIUM
10th CBSE
IMPORTANT
How would you prove that white light is made up of a number of colours?
EASY
10th CBSE
IMPORTANT
Why do we observe the seven colours when white light passes through a glass prism? Which component of white light deviates the least?
MEDIUM
10th CBSE
IMPORTANT
Why do different colours get separated when white light passes through a glass prism? How can we recombine the components of white light after a prism has separated them? Explain with the help of a figure.
EASY
10th CBSE
IMPORTANT
How would you prove that the colours in the spectrum combine to give back the white light?
MEDIUM
10th CBSE
IMPORTANT
Show the formation of a rainbow with the help of a ray diagram. What are the conditions to observe a rainbow?
MEDIUM
10th CBSE
IMPORTANT
When we look at objects through the air above a very hot surface, the objects appear to be moving slightly. Explain why.
EASY
10th CBSE
IMPORTANT
Why don't planets twinkle at night?