8. The Young’s double slit experiment is performed with blue and with green light of wavelengths 4360Å and 5460Å respectively. If x is the distance of 4th maxima from the central one, then :

8. The Young’s double slit experiment is performed with blue and with green light of wavelengths 4360Å and 5460Å respectively. If x is the distance of 4th maxima from the central one, then :


\((a)\; x_{\text{(blue)}} = x_{\text{(green)}}\)

\((b)\; x_{\text{(blue)}} > x_{\text{(green)}}\)

\((c)\; x_{\text{(blue)}} < x_{\text{(green)}}\)

\((d)\; \dfrac{x_{\text{(blue)}}}{x_{\text{(green)}}} = \dfrac{5460}{4360}\)


Answer :  \((c)\; x_{\text{(blue)}} < x_{\text{(green)}}\)









\(\beta = \frac{\lambda D}{d}\)


\(x_n = n \frac{\lambda D}{d}\)

\(x_{blue} = 4^{th} Maxima \)

\(= 4\left(\frac{4360\,Å\,D}{d}\right)\)

\(x_{green} = 4\left(\frac{5460\,Å\,D}{d}\right)\)

\( x_{\text{(blue)}} < x_{\text{(green)}}\)






No comments:

Post a Comment

Please provide your valuable feedback. Students, Parents, Teachers.