Name the series of hydrogen spectrum, which has least wavelength.

Name the series of the hydrogen spectrum which lies in the visible region of electromagnetic spectrum.

Name the series of hydrogen spectrum which fall in infra-red region.

Name the series of hydrogen spectrum which fall in visible region.

Name the series of lines in the hydrogen spectrum which lie in the infrared region.

Name the series of hydrogen spectrum lying in ultraviolet region.

If the wavelength of the first member of Balmer series of hydrogen spectrum is 6563Å , then the wavelength of second member of Balmer series will be