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CBSE Class 12-science Answered

What will be the effect on interference pattern in Young's Double slit experiment if the source slit is moved closer to the double slit plane?
Asked by divyakhare | 03 Mar, 2012, 11:50: AM
answered-by-expert Expert Answer
If source slit is moved closer to double slits , after some time the fringes will overlap and if it come more closer the fringes will dissapear and there will same illumination at every point. 
Answered by | 03 Mar, 2012, 11:25: PM

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CBSE 12-science - Physics
find the condition for constructive and destructive interference .how does the intensity depend on the width of slit?  
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A parallel beam of light of wavelength 600 nm is incident normally on a slit of width 0.2 mm. If the resulting diffraction pattern is observed on a screen 1 m away, find the distance of (i) First minimum, and (ii) Second maximum, from the central maximum. 
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CBSE 12-science - Physics
if separation between the two slits is increased till fringes are observed then what will happen to angular separation of fringes (my thought is here  fringes are not observed  and they are increasing till fringes show up ...so until then what will happen to angular width if we increase d-slit separation..does angular width increases or remains same  
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