For a given order (say m = 3), is the angle of diffraction for red light larger

Question

For a given order (say m = 3), is the angle of diffraction for red light larger or smaller than the angle for blue light? Explain. Transitions to the n = 1 (ground state) level from higher levels in the hydrogen atom never produce visible wavelength photons. Are the wavelengths produced by transitions to the n = 1 level longer or shorter than visible wavelengths? Explain. The colors of the four lines of the hydrogen Balmer spectrum are red, blue-green, and two shades of violet. Which initial states n = 3, 4, 5, 6 correspond to which colors?

Explanation / Answer

d sin[theta] = m× lamda

Lamda for blue light is smaller than for red light , hence theta is smaller for blue light than for red light .

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