00:01The question is, hydrogen atom excites energy level from fundamental state to n is equal
00:10to 3, number of spectral lines according to Bohr is A4, B3, C1, D2 is, for ground state
00:22and the number of spectral lines can be calculated by using formula n into n minus 1 upon 2.
00:46So, here, the value of n is 3, so by placing the value of n, so 3 into 3 minus
00:581 upon 2,
01:01so it will be 3 into 3 minus 1, 2 upon 2, so 2 will be get cancelled with 2,
01:10so the number
01:12of spectral lines will be obtained as 3, this formula we use only for ground state, means
01:22جب ground state میں سے کسی بھی higher energy level میں جائے گا تو اس condition
01:27میں ہم یہ formula use کریں گے.
01:30So, the correct option will be B3.
01:36F
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