119 D As E is inversely proportional to wavelength The least energy is for option D and thus the longest wavelength
@waheedkhan28808 күн бұрын
Yes dear! u r right as k alpha has a higher energy as compared to m alpha so the longest wavelength will be of m alpha. I was in hurry due to which I thought it is Abt higher or lower energy. Grateful for mentioning the mistake. Stay blessed dear❤