Dual Nature Of Light Question 146
Question: The de-Broglie wavelength associated with a hydrogen molecule moving with a thermal velocity of 3 km/s will be
Options:
A) 1 Å
B) 0.66 Å
C) 6.6 Å
D) 66 Å
Show Answer
Answer:
Correct Answer: B
Solution:
$ \lambda =\frac{h}{mv_{rms}} $ Þ $ \lambda =\frac{6.6\times {{10}^{-34}}}{2\times 1.67\times {{10}^{-27}}\times 3\times 10^{3}}=0.66,{\AA} $
BETA
