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CBSE Class 12-science Answered

 If the two slits in Young's double slit experiment have width ratio 4:1, deduce the ratio of the intensity of maxima and minima in the interference pattern?
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Asked by modi72879 | 14 Oct, 2017, 01:18: PM
answered-by-expert Expert Answer
begin mathsize 12px style Width space is space directly space proportional space to space the space intensity And space intensity space is space directly space proportional space to space square space of space amplitude Maximum space Intensity space the space square space of space sum space of space both space amplitude space space and space minimum space intensity space will space be space square space of space the space subtraction space of space both space amplitude. straight w subscript 1 over straight w subscript 2 equals straight I subscript 1 over straight I subscript 2 equals straight A squared over straight B squared 4 over 1 equals straight A squared over straight B squared straight A over straight B equals 2 over 1 semicolon space straight A equals 2 xB straight I subscript max over straight I subscript mini equals fraction numerator left parenthesis straight A plus straight B right parenthesis squared over denominator left parenthesis straight A minus straight B right parenthesis squared end fraction equals fraction numerator left parenthesis 2 straight B plus straight B right parenthesis squared over denominator left parenthesis 2 straight B minus straight B right parenthesis squared end fraction equals open parentheses fraction numerator begin display style 3 straight B end style over denominator begin display style straight B end style end fraction close parentheses squared equals 9 over 1 end style
Answered by Gajendra | 04 Dec, 2017, 11:24: AM

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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?  
Asked by shivamtkr7767 | 03 Mar, 2024, 12:45: PM
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CBSE 12-science - Physics
find the intensity at a point on a screen in young double slit experiment where the interfering wave of equal intensity have have a path difference of lemda/4,lemda/3
Asked by tannusharan31 | 05 Nov, 2023, 05:31: PM
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CBSE 12-science - Physics
In Young's double slit experiment, the two slits are separated by 0.28mm and the screen is placed at a distance of 1.4m away from the slits. the distance between the centre fringe and the fifth dark fringe is measured to be 1.35cm . calculate the wavelength of light used. Also find the fringe width if the screen is moved 0.4m towards the slits, for the same experiment set up.
Asked by mrwballari999 | 03 Jan, 2023, 09:33: AM
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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  
Asked by neetaspirantdoctor | 20 May, 2022, 03:57: PM
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CBSE 12-science - Physics
coherent sources
Asked by aryanshahi903 | 09 Apr, 2021, 06:14: AM
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CBSE 12-science - Physics
two coherent lights with of intensity 5 into 10 to power per to permit your each superimpose and produce the interference pattern on a screen at a point where the path difference between the wave is Lambda divided by 6 where Lambda is the wavelength of the wave find the first phase difference between wave second resultant intensity at the point
Asked by nehadevi2728 | 19 Mar, 2021, 03:56: PM
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CBSE 12-science - Physics
We for equal wave intensities the intensity at a point is given by straight I to the power of apostrophe equals 4 Icos squared open parentheses straight ϕ over 2 close parentheses but where does the formula straight I to the power of apostrophe equals Icos squared open parentheses straight ϕ over 2 close parentheses come from??
Asked by deepsmooth41 | 19 Apr, 2020, 01:00: AM
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CBSE 12-science - Physics
Question 15
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Asked by ritikabehera01 | 20 Feb, 2019, 09:56: AM
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CBSE 12-science - Physics
kindly answer
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Asked by jain.pradeep | 18 Feb, 2019, 11:27: PM
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CBSE 12-science - Physics
kindly provide answer pl
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Asked by jain.pradeep | 18 Feb, 2019, 11:03: PM
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