Question

(a) Calculate the angular momentum of Venus due to its orbital motion about the Sun. In your calculation, use 1.080  10¹¹ m as the average Venus-Sun distance and 1.940  10⁷s as the period of Venus in its orbit.
kg·m²/s
(b) Assume that Venus's angular momentum is described by Bohr's assumption . Determine the corresponding quantum number.

(c) By what fraction would one have to increase the radius of Venus's circular orbit in order to raise the quantum number by 1?

Answer 1

(a)

given that  

r = 1.080 1011

T = time period = 1.940 107

m = 4. 867 1024 kg

angular momentum is given as

Kg m2 /s

(b) now if the angular momentum is defined by bohr `s assumption than

• 
• 
• where h = plank`s constant = 6.6 10 -34 J S
• 
• where n = corresponding quantum number .

(c) -

• ........................(1)
• ................(2)
• deviding equation 2 & 1 we have
• 
• ANSWER