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प्रश्न
When a white light ray falls on a prism, the ray at its first surface suffers ______.
विकल्प
No refraction
Only dispersion
Only deviation
Both deviation and dispersion
उत्तर
When a white light ray falls on a prism, the ray at its first surface suffers both deviation and dispersion.
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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.
What acts as tiny prisms in the formation of a rainbow?
What do you understand by the term spectrum? Name the various colours present in the spectrum of sunlight.
Define the term dispersion of light.
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?
Make the correct choice for each of the following:
Which one of the following Fig correctly shows the path of the ray through the glass block?
The process of separation of light into its component colours while passing through a medium is called _______.
When white light enters a glass prism from the air, the angle of deviation is least for ____________.
dispersive power of crown glass? Given that µv = 1.5230, µr = 1.5145
