Question

Which is not a correct order of energy for 1, 2nd
& 3rd orbit:
A
Ey > E2 > E3
B
(PE); <(PE)2 < (PE)3
(KE), > (KE) > (KE)3
D
'1'&'3' both​

Answer 1

Answer:

E

1

>E

2

>E

3

Explanation:

The correct order for the energy for first, second and third orbit is

E

1

<E

2

<E

3

.

E

n

∝

n

2

−1

Higher is the value of n, less negative is the energy.

Thus energy increases with orbit number.

Hence, the correct option is A