Determine the wavelength of different spectral lines of mercury light using plane transmission grating
1. Determine the wavelength of spectral lines using plane-transmission grating
2. If the number of lines of a grating increase, its resolving power-
3. The optical element used to split a poly-chromatic light into its constituent component colors is called-
4. The condition for observing Fraunhofer diffraction from a single slit is that the wavefront incident on the slit should be