Question

11 Bohr radius for the hydrogen atom (n = 1) is
approximately 0.530Ă. The radius for the first excited
state (n = 2) is (in Å)
(a) 0.13 (b) 1.06 (c) 4.77 (d) 2.12
12 The wavelength corresponding to maximum energy for
hydrogen is 91.2 nm. The corresponding wavelength for
Hetion is
(a) 2.28 nm (b) 22.8 nm (c) 182.4 nm (d) 364.8 nm
13 The wavelength of the radiation emitted when na
hydrogen atom electron falls from infinity to first
stationary state would be (Ry = 1.097 x10 m )
(a) 91 nm (b) 191 nm (c) 209 nm (d) 314 nm
14 The de-Broglie wavelength associated with a ball of
mass 1 kg having kinetic energy 0.5 J is
(a) 6.626 X 10-34m
(b) 13.20 x 10-34m
(c) 10.38x10-21 m
(d) 6.626x10-34 Å
15 Match the Column I a with Column II and choose the
correct codes.
Column 1
Column II
nh
A.
mur =
1. de-Broglie equation
B. 1 =
2.
Electrons total energy
3. Paschen series
D.
Infrared
4.
Bohr's equation
Codes
A B
(a) 4 1
(0) 1 3
C
2
4
D
3
2
A
(6) 4
(d) 2
B
1
1
C
3
3
D
2
4
thannsition of an electron. ((((only answer no explanation)))))​

Answer 1

Answer:

This is Very Long And Long I don't know your question