Which of the following light types on a grating with 1000 rulings with a spacing of 2µm would produce the largest number of maxima on a screen 5 m away?

Question

Quizplus · Accepted Answer

The number of maxima produced on a screen by light passing through a grating is determined by the grating equation $d\sin\theta = m\lambda$, where $d$ is the spacing between the rulings, $\theta$ is the diffraction angle, $m$ is the order of the maximum, and $\lambda$ is the wavelength of the light. For a given grating spacing, shorter wavelengths (such as blue light) will produce more maxima within the same angular range because they can fit more orders ($m$) within the angle before reaching the limit ($\theta = 90^\circ$).

Which of the Following Light Types on a Grating with 1000