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प्रश्न
A beam of white light is shone onto a glass prism. The light cannot be:
(a) deviated
(b) dispersed
(c) focused
(d) refracted
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उत्तर
focussed
A beam of white light when shone on to a glass prism can be deviated, dispersed or refracted, but it cannot be focussed.
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संबंधित प्रश्न
A student is observing a diagram showing the path of a ray of light passing through a glass prism. He would find that for all angles of incidence the ray of light bends:
Define the term dispersion of white light.
Draw a ray diagram to show the dispersion of white light.
In the figure given alongside, a narrow beam of white light is shown to pass through a triangular glass prism. After passing through the prism, it produces a spectrum YX on the screen.
- State the colour seen
- at X, and
- at Y.
- Why do different colours of white light bend through different angles with respect to the incident beam of light?
Describe how you could demonstrate that white light is composed of a number of colours.
Name the process which is involved in the formation of a rainbow.
The property of splitting of white light into its seven constituent colours is known as
Define the term dispersion of light.
Complete the ray diagram given below to show the nature of light produced on the screen.
The completed ray diagram is as shown below:
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.
Write the range of wavelength of the visible spectrum.
Write the range of wavelength of the infrared spectrum.
The splitting of white light in to seven colors is called ______.
The sunlight can be split into its constituent colors using ______.
Which of the following is a natural phenomenon which is caused by the dispersion of sunlight in the sky?
The phenomena of light involved in the formation of rainbow are ______.
In dispersion, the color of light that will bend more is ______.
The dispersive powers of flint glass and crown glass are 0.053 and 0.034, respectively and their mean refractive indices are 1.68 and 1.53 for white light. Calculate the angle of the flint glass prism required to form an achromatic combination with a crown glass prism of refracting angle 4°:
dispersive power of crown glass? Given that µv = 1.5230, µr = 1.5145
When sunlight passes through water droplets in the atmosphere it gets dispersed into its constituent colours forming a rainbow. A similar phenomenon is observed when white light passes through a prism.
Which colour will show the maximum angle of deviation and which colour will show the minimum angle of deviation?
