Dispersion of Light
Physics ⇒ Light and Optics
Dispersion of Light starts at 8 and continues till grade 12.
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See sample questions for grade 10
A beam of white light is passed through a prism and a screen is placed to capture the spectrum. If the prism is replaced with a rectangular glass slab, what will be observed on the screen?
A student shines white light through a glass prism and observes a spectrum on the wall. What is the physical explanation for the appearance of different colors?
Describe an experiment to show the recombination of the spectrum of white light.
Describe the process of rainbow formation in the atmosphere.
A beam of white light is passed through a prism and a screen is placed to capture the spectrum. If the prism is replaced with a rectangular glass slab, what will be observed on the screen?
A student shines white light through a glass prism and observes a spectrum on the wall. What is the physical explanation for the appearance of different colors?
If a prism disperses white light into its constituent colors, what will happen if only red light is passed through the prism?
If the angle of deviation for red light is 38° and for violet light is 40° in a prism, what is the angular width of the spectrum?
Which of the following best explains why a prism disperses light but a glass slab does not?
(1) The prism has a triangular shape causing different path lengths for different colors.
(2) The glass slab is thicker.
(3) The prism is made of a different material.
(4) The glass slab absorbs all colors.
Which of the following colors of visible light is deviated the most when white light passes through a glass prism?
(1) Red
(2) Green
(3) Blue
(4) Violet
Which of the following is NOT a constituent color of white light?
(1) Red
(2) Yellow
(3) Black
(4) Indigo
Which of the following is NOT a property of the spectrum formed by dispersion of white light?
(1) It contains seven colors
(2) The colors are arranged in a fixed order
(3) The colors overlap randomly
(4) The spectrum is continuous
The angle between the incident ray and the emergent ray in a prism is called the __________ angle.
The band of colors formed due to dispersion of light is called the __________.
The difference in the refractive indices for red and violet light in a medium is called __________.
The phenomenon of rainbow formation in the sky is due to __________ of sunlight by water droplets.
True or False: Dispersion of light can occur in both prisms and lenses.
True or False: Dispersion of light can only occur in glass prisms.
True or False: Dispersion of light is an example of a physical change.
True or False: Dispersion of light is responsible for the colorful patterns seen in oil films on water.
