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प्रश्न
Define the term angle of deviation.
उत्तर
The angle of deviation, represented by 8 (delta), is the angle formed by the direction of the incident ray generated forward, and the emerging ray produced backward.
संबंधित प्रश्न
A ray of light incident at an angle of incidence i1 passes through an equilateral glass prism such that the refracted ray inside the prism is parallel to its base and emerges at an angle of emergence i2.
- How is the angle of emergence ‘i2’ related to the angle of incidence ‘i1’.
- What can you say about the angle of deviation in such a situation?
Which of the two prism, A made of crown glass and B made of flint glass, deviates a ray of light more?
A ray of light is normally incident on one face of an equilateral glass prism. Answer the following:
What is the angle of incidence on the first face of the prism?
A ray of light is normally incident on one face of an equilateral glass prism. Answer the following:
Will the light ray suffer minimum deviation by the prism?
In following figure shows two identical prisms A and B placed with their faces parallel to each other. A ray of light of single colour PQ is incident at the face of the prism A. Complete the diagram to show the path of the ray till it emerges out of the prism B.
[Hint: The emergent ray out of the prism B will be parallel to the incident ray PQ]
When white light enters a prism, it gets split into its constituent colours. This is due to:
Assertion: When a pencil is partly immersed in water and held obliquely to the surface, the pencil appears to bend at the water surface.
Reason: The apparent bending of the pencil is due to the refraction of light when it passes from water to air.
How will you use two identical prisms so that a narrow beam of white light incident on one prism emerges out of the second prism as white light? Draw the diagram.
The diagram below shows the path of a blue ray through the prism:
- Calculate the critical angle of the material of the prism for blue colour.
- What is the measure of the angle of this prism (A)?
- Which colour should replace the blue ray, for the ray to undergo Total Internal Reflection?
Name the colour of white light which is deviated the least on passing through a prism.
