Statement 1: Bragg's equation has no solution, if n = 2 and $\mathrm{\lambda }>\mathrm{d}$.

Statement 2: Bragg's equation is: $\mathrm{n\lambda }=2\mathrm{d}sin\mathrm{\theta }$.

According to fundamental principle of optics the wavelength of light used to observe an object must be no greater than twice the length of object itself.

$⋋ \mathrm{of} \mathrm{X}-\mathrm{Rays} < \mathrm{dimension} \mathrm{of} \mathrm{atom}.$

If n = 2 and $\mathrm{\lambda }>\mathrm{d}$ then $sin\mathrm{\theta }>1$,  which is not possible.

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