1.

Calculate the FREQUECY of the last line of lyman series in. hydrogen spectrum.

Answer»

For LAST line of lyman series N1 = 1 , N2 = infinte

1/LAMDA = RZ^2 (1/n1^2 - 1/n2^2)

1 / lamda = R (1/1 - 0)
= R
= 109700cm^-1

v = C/lamda
= C * R
= 3 * 10^8 * 109700
= 3.29 *10^15 / sec


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