Prisms
Physics ⇒ Light and Optics
Prisms starts at 9 and continues till grade 12.
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See sample questions for grade 11
A prism has an angle of 50° and a refractive index of 1.7. If the angle of minimum deviation is 40°, verify if the prism formula holds true.
A prism is made of glass with a refractive index of 1.6. If the angle of the prism is 45° and the angle of minimum deviation is 30°, calculate the value of sin[(A + D)/2].
A ray of light enters a prism with an angle of incidence of 40°. If the angle of the prism is 60° and the refractive index is 1.5, calculate the angle of refraction at the first surface using Snell's law.
A ray of light passes through a prism with an angle of prism 60° and minimum deviation 40°. Calculate the refractive index of the prism.
A student observes that the deviation produced by a prism is 25° for a certain angle of incidence. If the angle of the prism is 40°, what is the sum of the angle of incidence and the angle of emergence?
Describe how the angle of deviation changes as the angle of incidence increases from zero to a high value.
Describe the difference between a right-angled prism and an equilateral prism.
Explain the phenomenon of dispersion as it occurs in a glass prism.
Explain why a prism produces a spectrum of colors when white light passes through it.
Explain why the deviation produced by a prism is different for red and violet light.
State one practical application of a right-angled prism in optical instruments.
State the formula for the angle of minimum deviation (D) for a prism in terms of the angle of the prism (A) and the refractive index (n).
The refractive index of a prism is 1.5 and the angle of the prism is 30°. If the angle of minimum deviation is 20°, verify the prism formula.
What is a prism in the context of optics?
Which property of a prism is responsible for the separation of colors in white light?
