Intense white light is incident on a diffraction grating that has 600 lines/mm. (a) What is the highest order in which the complete visible spectrum can be seen with this grating? (b) What is the angular separation between the violet edge (400 nm) and the red edge (700 nm) of the first-order spectrum produced by the grating?
Dudaie 1 Physics II Chapter 21 Chapter 21 Electric Current & DirectCurrent Circuits 1. Electric Current a. The flow of electric charge from one place to another is known as electric current i. I=∆Q/∆ t 1. 1 A= 1C/s} ampere or amp b. Often charge is carried by electrons moving through a metal wire i. Do example 211 c. When the charge flows through a closed path and returns to its starting point the closed path is referred to as electric circuit i. In this chapter we consider direct current circuits also known dc circuit is a current in whi
