Compute all parts of following question:
Question: A dental x-ray typically affects 205 g of tissue and delivers about 4.15 μJ of energy using x-rays that have wavelengths of 0.0255 nm.
Part A: What is the energy (in electron volts) of a single photon of these x-rays?
__________ eV
Part B: How many photons are absorbed during the dental x-ray?
_______ Photons
I need help to find how many photons are absorbed during the dental x-ray.