Question

Statement-1 : Balmer series lies in the visible region of
electromagnetic spectrum.
Statement-2 : 1/???? = R[1/2² - 1/n²], where n = 3, 4, 5.

Answer 1

Answer:

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Explanation:

Wavelength is Balmer series is,

λ

1

=R[

2

2

1

−

n

2

1

];

λ

max

1

=R[

2

2

1

−

3

2

1

]

or λ

max

=

5R

36

=

5×1.097×10

7

36

=6563

A

∘

1/λ

min

=R[

2

2

1

−

∞

2

1

]

or λ

min

=

R

4

=

1.097×19

7

4

=3646

A

∘

So it lies in the visible region.

Answer 2

Answer:

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