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प्रश्न
Which colour of the spectrum has
longest wavelength,
उत्तर
The colour red of the spectrum has the longest wavelength.
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संबंधित प्रश्न
What did Newton demonstrate by his experiments with the prism?
Name some everyday objects:
which reflect all the colours in sunlight
What is tyndall effect? Explain with an example.
Draw a neat and labelled diagram of the experimental set up for observing the scattering of light in a colloidal solution of sulphur to show how the sky appears blue, and the sun appears red at sunrise and sunset.
Explain in brief the reason for the following:
Twinkling of stars
A beam of blue, green, and yellow light passes through the earth's atmosphere. Name the colour which is scattered the least.
Answer the following question:
Why is the Tyndall effect shown by colloidal particles? State four instances of observing the Tyndall effect.
At noon the sun appears white as:
Which of the following phenomena contributes significantly to the reddish appearance of the sun at sunrise or sunset?
Twinkling of stars is due to atmospheric
