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प्रश्न
The colour of white light which is deviated the maximum on passing through the glass prism is:
(a) blue
(b) indigo
(c) red
(d) orange
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उत्तर
indigo
Among the colours blue, indigo, red and orange, indigo is deviated the maximum on passing through a glass prism.
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संबंधित प्रश्न
A student traces the path of a ray of light through a triangular glass prism for different values of angle of incidence. On analyzing the ray diagrams, which one of the following conclusions is he likely to draw?
(A) The emergent ray is parallel to the incident ray.
(B) The emergent ray bends at an angle to the direction of the incident ray.
(C) The emergent ray and the refracted ray are at right angles to each other.
(D) The emergent ray is perpendicular to the incident ray.
The path of a ray of light passing through a glass prism is shown below:
In this diagram, the angle of prism, angle of incidence, angle of emergence and angle of deviation, respectively, have been represented by:
(A) O, Y, Z and N,
(B) P, Y, M and Z,
(C) O, X, M and Z,
(D) P, X, Z and N.
What happens when a ray of ordinary light is passed through a triangular glass prism?
What is a rainbow? What are the two conditions necessary for the formation of a rainbow in the sky?
The splitting up of white light into seven colours on passing through a glass prism is called:
(a) refraction
(b) deflection
(c) dispersion
(d) scattering
The coloured light having the maximum speed in glass prism is:
(a) blue
(b) green
(c) violet
(d) yellow
The speed of light in air or vacuum is
How does the speed of light determine the optical density of a medium?
Out of air and glass, which is optically rarer? Give reason.
What do you understand by the term spectrum? Name the various colours present in the spectrum of sunlight.
Draw a labeled ray diagram to illustrate the dispersion of a narrow beam of white light when it passes through a glass prism.
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.
A wave has wavelength 50Å of name the wave.
What is the cause of the dispersion of white light through a glass prism? Draw a ray diagram to show the path of light when two identical glass prisms are arranged together in an inverted position with respect to each other and a narrow beam of white light is allowed to fall obliquely on one of the faces of the prisms.
Draw a neat and labelled diagram for dispersion of light.
Rainbow is a beautiful natural phenomenon. It is the combined effect of a natural three processes together produced by light. Write it into the circle.
Observe the given figure and answer the following questions.
- Which colour light rays bend most?
- Which colour light rays bend least.
- What is the wavelength of violet light rays?
State the correct sequence (1-7) of colours in the spectrum formed by the prisms A and B, shown in the following figure.
Which one of the following is involved for the formation of rainbow in the sky?
A prism of refractive index `sqrt2` and refracting angle A produces minimum deviation δm of a ray on one face at an angle of incidence 45°, The values of A and δm are, respectively ______.
