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Diffstat (limited to '2780/CH2/EX2.15')
| -rwxr-xr-x | 2780/CH2/EX2.15/Ex2_15.sce | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/2780/CH2/EX2.15/Ex2_15.sce b/2780/CH2/EX2.15/Ex2_15.sce new file mode 100755 index 000000000..a5ab5be0c --- /dev/null +++ b/2780/CH2/EX2.15/Ex2_15.sce @@ -0,0 +1,18 @@ +clc
+//to calculate distance of the third bright fringe on the screen from the central maximum
+lambda=6.5*10^-5 //wavelength in cm
+twod=0.2 //distance between the slits in cm
+D=120 //distance between the plane of the slits and the screen in cm
+n=3
+X3=D*n*lambda/twod
+disp("the distance of the third bright fringe from the central maximum is X3="+string(X3)+"cm")
+//to calculate the least distance from the central maximum
+lambda1=6.5*10^-5 //wavelength in cm
+lambda2=5.2*10^-5 //wavelength in cm
+//Xn=Dnlambda1/2d=D(n+1)lambda2/2d
+//we get,
+n=lambda2/(lambda1-lambda2)
+disp("n="+string(n)+"unitless")
+Xn=D*n*lambda1/twod
+disp("the distance from the central maximum when the bright fringes due to both wavelengths coincide is Xn="+string(Xn)+"cm")
+
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