Please answer all the 3 questions

General Physics II Lab 01 Two-slit Interference & diffraction grating Name Ip Shing Was Date 24# 25 th April 2023 Lab session (Day & time) LA3 Tuesday 1:30 pm Lab partner Ol Two-slit Interference and Diffraction Grating Lab Report A. Answer the following question BEFORE the lab session (6 pts each) 1. Derive Eq. (1) using the optical path diagram shown in Fig. 1. Briefly describe the physical meaning of Eq. (1). 2. Suppose the spacing between the two slits was smaller than the wavelength of light you were trying to measure, how many orders of maxima would you expect to see? 3. The condition of constructive interference for two slits is the same as that for a diffraction grating. What are the advantages of using a diffraction grating over a two-slit setup to disperse light? Explain