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प्रश्न
A student has to trace the path of a ray of light through a glass prism. List four precautions he should observe for better results.
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उत्तर
Precautions to be observed to trace the path of a ray of light through a glass prism:
1. Make sure the prism taken is polished and not broken.
2. Make sure to look at the image through the proper eye level through the prism.
3. Sharp lines need to be drawn so that proper results can be observed.
4. The angle of incidence ideally should be 45o for a better outcome.
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संबंधित प्रश्न
Describe how you could demonstrate that white light is composed of a number of colours.
What acts as tiny prisms in the formation of a rainbow?
A ray of white light falls on a prism. Draw a ray diagram to show that the prism disperses the white light.
When a white light ray falls on a prism, the ray at its first surface suffers ______.
In an experiment to trace the path of a ray of light through a triangular glass prism, a student would observe that the emergent ray
(a) is parallel to the incident ray.
(b) is along the same direction of incident ray.
(c) gets deviated and bends towards the thinner part of the prism.
(d) gets deviated and bends towards the thicker part (base) of the prism.
Refer to fig
(i) Name the lens L.
(ii) What are the points O, O' called?
(iii) Complete the diagram to form the image of the object AB.
(iv) Write three characteristics of the image.
Draw a labelled diagram: Dispersion of light through a prism.
What do you understand by spectrum? Name the seven prominent colours in order, as obtained in the spectrum of white light.
What is a rainbow?
dispersive power of crown glass? Given that µv = 1.5230, µr = 1.5145
