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प्रश्न
Draw a neat and labelled diagram for dispersion of light.
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उत्तर
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संबंधित प्रश्न
Draw a ray diagram to show the dispersion of white light.
When a beam of white light is passed through a prism, it splits to form lights of seven colours. Is it possible to recombine the lights of seven colours to obtain the white light again? Explain your answer.
Which is refracted most by a prism : red light or violet light? Explain why?
Name the process which is involved in the formation of a rainbow.
Which of the following colour of white light has the least wavelength?
(a) red
(b) orange
(c) violet
(d) blue
When white light passes through a prism, it ............
You are given a disc divided into seven sectors with colours violet, indigo, blue, green, yellow, orange and red in them. What would be its colour when it is rotated rapidly?
A ray of white light is passed through a glass prism and a spectrum is obtained on a screen.
- Name the seven colours of the spectrum in order.
- Do the colours have the same width in the spectrum?
- Which of the colour of the spectrum of white light deviates (i) the most, (ii) the least?
Complete the ray diagram given below to show the nature of light produced on the screen.
An object AB is placed in front of a convex lens as shown in fig. 4. Complete the ray diagram and obtain the image formed and state the nature of the image.
An object is placed in front of a converging lens and in front of a diverging lens as in fig.
(a)Complete the ray diagram to obtain an image.
(b)Compare the nature of image formed by both the lenses in the above case.
The wavelengths of violet and red light are 4000 Å and 8000 Å respectively. Which of the two has the higher frequency?
The wavelength range of white light is ______.
Write three conditions necessary to obtain a pure spectrum on a screen. Name the instrument in which the conditions stated by you are fulfilled.
Observe the given figure and write appropriate phenomenon of light in the box.
In dispersion, the color of light that will bend more is ______.
Assertion: We can see the rainbow in the sky when the rain starts falling after a spell of bright sunlight.
Reason: The rainbow is formed due to the dispersion of light.
What is a rainbow?
In the following diagram showing dispersion of white light by a glass prism, the colours 'P' and 'Q’ respectively are:
