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Light wavelength 650 nm is incident norm...


Light wavelength 650 nm is incident normally upon a glass plate the glass plate rests on top of second plate so that hey touch at one end and are separated by 0.0325 mm at the other end as shown in the figure. Which range of values contains the horizontal separation between adjacent bright fringes?

A

1.1 mm to 1.4 mm

B

1.4 mm to 2.8 mm

C

2.8 mm to 4.2 mm

D

4.2 mm to 5.6 mm

Text Solution

Verified by Experts

The correct Answer is:
A
`d=` distance between the adjacent bright fringe
`d=(Llamda)/(2D)implies((120xx10^(-3))(650xx10^(-9)))/(2xx(0.325xx10^(-3)))`
`d=1.2mm`
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ALLEN-WAVE OPTICS-Exercise 1 (Check your Grasp)
  1. In the YDSE shown the two slits are covered with thin sheets having th...

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  2. In a YDSE with two identical slits, when the upper slit is covered wit...

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  3. Light wavelength 650 nm is incident normally upon a glass plate the gl...

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  4. Diffraction and interference of light suggest

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  5. The phenomenon of diffraction of light was discovered by-

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  6. Sound waves shown more diffraction as compare to light rays-

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  7. The conversation going on, in some room, can be heared by the person o...

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  8. Diffraction initiated from obstacle, depends upon the

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  9. Phenomenon of diffraction occurs

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  10. Diffraction of light is observed only, when the obstacle size is-

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  11. Which of the following any gives more distinct diffraction

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  12. All fringes of diffraction are of-

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  13. A single slit of width d is placed in the path of beam of wavelength l...

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  14. Direction of the first secondary maximum in the Fraunhofer diffraction...

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  15. Angular width of central maximum of a diffraction pattern on a single ...

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  16. Red light is generally used to observe diffraction pattern from single...

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  17. Calculate angular width of central maxima if lamda=6000Å,a=18xx10^(-5)...

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  18. In single slit fraunhoffer diffraction which type of wavefront is requ...

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  19. In the diffractin pattern of a single slit aperture, the width of the ...

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  20. Central fringe obtained in diffraction pattern due to a single slit-

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