Young’s double-slit apparatus problem

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Submerging Young’s double-slit apparatus in water would cause the fringe pattern to become less spread out due to the change in wavelength of light in different media. The wavelength decreases when light travels through a slower medium, such as water, while the frequency remains constant. This means that the spacing between the interference fringes will decrease, confirming that the statement is true. The discussion emphasizes the relationship between wavelength, frequency, and the medium's effect on light. Understanding these principles is crucial for analyzing wave behavior in different environments.
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[SOLVED] question about light

Homework Statement


True or False question
5. If a Young’s double-slit apparatus, having operated in
air, were to be submerged in water, the fringe pattern
would become less spread out.


Homework Equations


c=f(lamda)


The Attempt at a Solution


What i think they mean: does the wavelength become shorter when light is traveling in a slower medium?

What i don't know is does the frequency of light stay constant regardless of the medium?
If yes, then the statement is true.
 
Physics news on Phys.org
Yes, the frequency is constant regardless of medium. The frequency of a wave only depends on the oscillations of the source of the wave.
 
Thank you.
 

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