EASY
JEE Main
IMPORTANT
Earn 100

The equation ω=μu-μrμ-1was derived for a prism having small refracting angle. Is it also valid for a prism of large refracting angle? Is it also valid for a glass slab or a glass sphere?

Important Questions on Dispersion and Spectra

MEDIUM
JEE Main
IMPORTANT
CONCEPTS OF PHYSICS [VOLUME 1]>Chapter 20 - Dispersion and Spectra>QUESTIONS FOR SHORT ANSWER>Q 2
Can the dispersive power ω=μv-μrμ-1 be negative? What is the sign of  ω if a hollow prism is immersed into water?
HARD
JEE Main
IMPORTANT
CONCEPTS OF PHYSICS [VOLUME 1]>Chapter 20 - Dispersion and Spectra>QUESTIONS FOR SHORT ANSWER>Q 3
If three identical prisms are combined, is it possible to pass a beam that emerges undeviated? undispersed?
MEDIUM
JEE Main
IMPORTANT
CONCEPTS OF PHYSICS [VOLUME 1]>Chapter 20 - Dispersion and Spectra>QUESTIONS FOR SHORT ANSWER>Q 4
"Monochromatic light should be used to produce pure spectrum". Comment on this statement.
EASY
JEE Main
IMPORTANT
CONCEPTS OF PHYSICS [VOLUME 1]>Chapter 20 - Dispersion and Spectra>QUESTIONS FOR SHORT ANSWER>Q 5
Does focal length of a lens depend on the color of the light used? Does the focal length of a mirror depend on the color?
MEDIUM
JEE Main
IMPORTANT
CONCEPTS OF PHYSICS [VOLUME 1]>Chapter 20 - Dispersion and Spectra>QUESTIONS FOR SHORT ANSWER>Q 6

Suggest a method to produce a rainbow in your house.

MEDIUM
JEE Main
IMPORTANT
CONCEPTS OF PHYSICS [VOLUME 1]>Chapter 20 - Dispersion and Spectra>OBJECTIVE I>Q 1
The angular dispersion produced by a prism 
MEDIUM
JEE Main
IMPORTANT
CONCEPTS OF PHYSICS [VOLUME 1]>Chapter 20 - Dispersion and Spectra>OBJECTIVE I>Q 2

If a glass prism is dipped in water, its dispersive power ___________ .

MEDIUM
JEE Main
IMPORTANT
CONCEPTS OF PHYSICS [VOLUME 1]>Chapter 20 - Dispersion and Spectra>OBJECTIVE I>Q 3
A prism can produce a minimum deviation δ in a light beam. If three such prisms are combined, the minimum deviation that can be produced in this beam is