Question

In Balmer series of hydrogen atom, as the wavelength of spectral lines decreases, they appear ______.

Options

• equally spaced and equally intense.

• further apart and stronger in intensity.

• closer together and stronger in intensity.

• closer together and weaker in intensity.

Answer 1

In Balmer series of hydrogen atom, as the wavelength of spectral lines decreases, they appear closer together and weaker in intensity.

Explanation:

As the wavelength of spectral lines in the Balmer series of H-atoms drops, they appear closer together and have a lower intensity due to decreasing transition probability.