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प्रश्न
Draw a ray diagram to show the refraction of a monochromatic ray through a prism when it suffers a minimum deviation. How is the angle of emergence related to the angle of incidence in this position.
उत्तर
The refraction of a monochromatic light beam through a prism when it experiences the lowest deviation is depicted in the diagram below:
The angle of emergence = the angle of incidence in the minimum deviation position prism in minimum deviation position ∠i = ∠e
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संबंधित प्रश्न
Define the term angle of deviation.
A light ray of yellow colour is incident on an equilateral glass prism at an angel of incidence equal to 48° and suffers minimum deviation by an angle of 36°.
- What will be the angle of emergence?
- If the angle of incidence is changes to (a) 30°, (b) 60°, state whether the angle of deviation will be equal to, less than or more than 36°?
Which of the two prism, A made of crown glass and B made of flint glass, deviates a ray of light more?
How does the angle of deviation depend on the refracting angle of the prism?
An object is viewed through a glass prism with its vertex pointing upwards. Draw a ray diagram to show the formation of its image as seen by the observer on the other side of the object.
What should be the angle of incidence for a ray of light which suffers a minimum deviation of 36° through an equilateral prism?
[Hint: A = 60°, i = (A + δmin)/2]
Draw a ray diagram showing the dispersion through a prism when a narrow beam of white light is incident on one of its refracting surfaces. Also indicate the order of the colours of the spectrum obtained.
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?
White light is dispersed by a prism. Inside the prism, compared to the blue light, the red light ______.
State three factors on which the angle of deviation depends.
