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In a Young's double slit experiment, sli...

In a Young's double slit experiment, slits are separated by `0.5 mm` and the screen is placed `150 cm` away. A beam of light consisting of two wavelengths, `650 nm` and `520 nm`, is used to obtain interference fringes on the screen. The least distance from the commom central maximum to the point where the bright fringes fue to both the wavelengths coincide is

A

15.6 mm

B

1.56 mm

C

7.8 mm

D

9.75 mm

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The correct Answer is:
C
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MOTION-WAVE OPTICS -EXERCISE - 4 (Level - I) Previous Year | JEE Main
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  2. If I0 is the intensity of the principal maximum in the single slit dif...

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  3. A Young's double slit experiment uses a monochromatic source. The shap...

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  4. In a Young's double slit experiment the intensity at a point where tha...

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  8. In a Young's double slit experiment, the two slits act as coherent sou...

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  9. At two point P and Q on screen in Young's double slit experiment, wave...

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  10. In Young's double slit experiment, one of the slit is wider than other...

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  11. A beam of unpolarised light of intensity I0 is passed through a polaro...

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  12. Two coherent point sources S1 and S2 are separated by a small distance...

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  13. As polaroid examines two adjacent plane polarised beam A and B whose p...

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  14. The diameter of a plano convex lens is 6 cm and thickness at the centr...

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  18. In a Young's double slit experiment, slits are separated by 0.5 mm and...

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  19. Unpolarized light of intensity I passes through an ideal polarizer A. ...

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  20. The angular width of the central maximum in a single slit diffraction ...

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