Q. White light containing wavelengths from 405 nm to 760 nm falls on a grating with 8000 lines/cm. How wide is the first-order spectrum on a screen 2.20 m away?
Q. In a series RLC AC circuit, the resistance is , the inductance is mH, and the capacitance is μF. The maximum potential is V, and the angular frequency is rad/s. Calculate the maximum current in the circuit.