Q1. A continuous line of charge lies along an x axis, extending from x = +x0 to positive infinity. The line carries charge with the uniform linear charge density λ0. What are the magnitude and direction of the electric field at the origin?
Q2. When a guitar string is sounded along with a 439 Hz tuning fork, a beat frequency of 5.00 Hz is heard. When the same string is sounded along with a 438 Hz tuning fork, the beat frequency is 6.30 Hz. What is the frequency of string?