Question

The wavelength in metres, of an object of mass 1.0 g moving with a velocity of $1.0\times {10}^4$ cm $s^{-1}$ (h = $6.626\times {10}^{-34}$) is :

• A. $6.626\times {10}^{-26}$
• B. $6.626\times {10}^{-31}$
• C. $6.626\times {10}^{-33}$
• D. $6.626\times {10}^{-27}$

Answer 1

The correct option is C $6.626\times {10}^{-33}$

$\lambda =\frac{6.626\times {10}^{-34}}{\left({10}^{-3}\right)\times \left({10}^2\right)}$ = $6.626$ x ${10}^{-33}$ meters