X-rays of `lamda = 1Å` have frequency

For which value(s) of lamda , do the pair of linear equations lamda x+ y= lamda^(2) and x+ lamda y= 1 have a unique solution?

Assertion (A): Gamma rays are electromagnetic waves having the smallest wavelength. Reason (R): Gamma rays are having the lowest frequency.

X-ray of wavelength lamda=2 Å is emitted from the metal target. The potential difference applied across the cathode and the metal target is

For which value(s) of lamda , do the pair of linear equations lamda x+ y= lamda^(2) and x+ lamda y= 1 have no solution?

Calculate the angle at which first order reflection will occur in an X-ray spectrometer when X-rays of wavelength 1.54Å are diffracted by the atoms of a crystal given that interplanar distance is 0.04Å .

Calculate the angle at which first order reflection will occur in an X-ray spectrometer when X-rays of wavelength 1.54Å are diffracted by the atoms of a crystal given that interplanar distance is 0.04Å .