Given below are two statements:Statement I: I | vedclass

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(C) The angular fringe width $	heta$ in a Young's double slit experiment is given by the formula $	heta = \frac{\lambda}{d}$,where $\lambda$ is the

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Statement $I$ is false but Statement $II$ is true

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(C) The angular fringe width $	heta$ in a Young's double slit experiment is given by the formula $	heta = \frac{\lambda}{d}$,where $\lambda$ is the wavelength of the light used and $d$ is the distance between the two slits.Statement $I$: The angular fringe width depends only on the wavelength $\lambda$ and the slit separation $d$. It is independent of the distance $D$ between the screen and the slits. Therefore,moving the screen away does not change the angular separation. Thus,Statement $I$ is false.Statement $II$: Since $	heta = \frac{\lambda}{d}$,the angular fringe width is directly proportional to the wavelength $\lambda$. If the source is replaced by one with a higher wavelength,$	heta$ will increase. Thus,Statement $II$ is true.Conclusion: Statement $I$ is false and Statement $II$ is true.

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