A point p is situated `90.50cm and 90.58` cm away from two coherent sources. The nature of illumination of the point p of the wavelength of light is 4

Question

A point p is situated `90.50cm and 90.58` cm away from two coherent sources. The nature of illumination of the point p of the wavelength of light is 4

A point p is situated `90.50cm and 90.58` cm away from two coherent sources. The nature of illumination of the point p of the wavelength of light is 400Å is,
A. bright
B. dark
C. neither bright nor bark
D. noen of these

Monjur Alahi

17 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - A
Path diff. `=9.58-90.50= 0.08 cm `
Now, `n=("Path diff")/("Wavelength")=(0.08xx10^(-2))/(4xx10^(-7))=2000`
The pathh diff. `= 2000 lambda`= inegral multiple of wavelenght, point up appears as bright.

17 views Answered 2023-02-05 15:29