Arrange the following in the increasing order of de-Broglie wavelength: A. A bullet of mass 0.02 kg travelling at the speed of 3.3 Km/s. Choose the correct answer from the options given below: |
B < A < C < E < D B < A < C < D < E B < A < D < C < E A < B < C < E < D |
A < B < C < E < D |
$\lambda = \frac{h}{mv}$ $ \lambda \propto \frac{1}{mv}$ A. $mv = 66 Kg - m/s $ B . $mv = 0.066 Kg - m /s $ C . $ mv = 6.6 \times 10^{-10} Kg - m/s$ D . $ mv = 6.63\times 10^{-26} Kg - m /s $ E . $ mv = \sqrt{2mqV} = \sqrt{ 2\times 9.1\times 10^{-31}\times 1.6\times 10^{-19}\times 100} = 5.4 \times 10^{-24} Kg-m/s$ Hence order of wavelength is A < B < C < E < D |