Question

20.
The distance between 4th and 3rd Bohr orbits of Het is:
(A) 2.645x10-1°m (B) 1.322x10-1°m (C) 1.851x10-1°m
(D) None​

Answer 1

Answer:

B)

i think

plzz do confirmation

Answer 2

c is the answer

distanceRadius of 3 rd orbit=(0.529x3^2)/2

Radius of 4th orbit=(0.529x4^2)/2

Distance between 4th and 3rd Bohr orbits of He+ is 1.851 × 10–10m

hence the 10m is also can be written as 1⁰

therefore 1.851x10-1⁰