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Answer the following.

Student 2 observes 10 fringes within a specific portion of the screen using the same monochromatic…

Physics20251.25 marksNumerical
Student 2 observes 10 fringes within a specific portion of the screen using the same monochromatic source of light. If he were to immerse his entire experimental setup in a liquid of refractive index 5/3, what alteration should he make to the distance of the screen to maintain the same number of fringes?

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Wave Optics

From ISC 2025 Practice Physics, question 92(d).