Physics - Modern Physics Question with Solution | TestHub

If frequency of ${\mathrm{K}}_{\alpha }$ X-ray emitted from the element with atomic number 31 is f, then frequency of ${\mathrm{K}}_{\alpha }$ x-ray emitted from the element with atomic number 51 would be (Assuming screening constant for ${\mathrm{K}}_{\alpha }$ X-rays is 1)