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What is position of bright fringes in young's double slight experiment by using monochromatic light.

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Important Questions on Wave Optics

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Achieve CUET (UG) Physics Practice Book>Chapter 10 - Wave Optics>Exercise>Q 70
Consider the following statements:
For experimental observation of good interference fringes, the interfering beams should be
1. Coherent
2. Of equal intensity
3. Of same polarisation
Which of the above are correct?
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Achieve CUET (UG) Physics Practice Book>Chapter 10 - Wave Optics>Exercise>Q 71
Two beams of light having intensities I and 4I interfere to produce a fringe pattern on a screen. The phase-difference between the beams is π2 at point A and π at point B. Then the difference between the resultant intensities at A and B is 
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Achieve CUET (UG) Physics Practice Book>Chapter 10 - Wave Optics>Exercise>Q 72

If an opaque object on the path of light is very small, light has a tendency to bend around it and not travel in a straight line. This effect is known as the _____ of light.

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Achieve CUET (UG) Physics Practice Book>Chapter 10 - Wave Optics>Exercise>Q 73
The angular width θ of central maximum of a diffraction pattern of a single slit does not depend upon,
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Achieve CUET (UG) Physics Practice Book>Chapter 10 - Wave Optics>Exercise>Q 74
In a Fraunhofer's diffraction obtained by a single slit aperture, the value of path difference for nth order of maxima is
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Achieve CUET (UG) Physics Practice Book>Chapter 10 - Wave Optics>Exercise>Q 75
Which of the following statement given more correct understanding that in most of the situations possibility of diffraction of sound is more than diffraction of light -
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Achieve CUET (UG) Physics Practice Book>Chapter 10 - Wave Optics>Exercise>Q 76
Light of wavelength 6328 A∘ is incident normally on a slit of width 0.2 mm. Calculate the angular width of the central maximum on a screen at a distance 9 m.
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Achieve CUET (UG) Physics Practice Book>Chapter 10 - Wave Optics>Exercise>Q 77
Which of the following statement is true for diffraction and interference pattern?