Assignment:

• Calculate the number of lines per unit length of the given grating using the simulator.

• Using green light as the standard, calculate the number of lines per unit length of the grating and hence obtain the wavelength of red line of the spectrum.

• Find the diffraction angle of the red line for the first order spectrum of the mercury spectrum.

• Compare the wavelength of red and violet lines of the mercury spectrum using diffraction grating arrangement.

• Obtain the wavelength of all prominent lines of the mercury spectrum using the diffraction grating arrangement.