Advertisements
Advertisements
प्रश्न
Advertisements
उत्तर
संबंधित प्रश्न
A narrow beam PQ of white light is passing through a glass prism ABC as shown in the diagram.
Trace it on your answer sheet and show the path of the emergent beam as observed on the screen DE.
(i) Write the name and cause of the phenomenon observed.
(ii) Where else in nature is this phenomenon observed?
(iii) Based on this observation, state the conclusion which can be drawn about the constituents of white light.
In the formation of spectrum of white light by a prism:
- which colour is deviated least?
- which colour is deviated most?
What do you understand by the term spectrum? Name the various colours present in the spectrum of sunlight.
Define the term dispersion of light.
Explain briefly, with the help of a neat labelled diagram, how white light gets dispersed by a prism. On which surface of a prism, there is both dispersion and deviation of light, and on which surface of the prism, there is only deviation of light ?
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 phenomenon of splitting of light into its component colours is ___________ .
State two uses of ultraviolet radiation.
Why do we see a rainbow in the sky only after rainfall?
