question_answer 13)

What will be the wavelength of a ball of mass 0.1 kg moving with velocity of \[10m\,{{s}^{-1}}\] ?

Answer:

Information shadow: Mass of the ball = 0.1 kg Velocity of the ball = \[10m\,{{s}^{-1}}\] Problem solving strategy: de Broglie wavelength of the ball can be calculated using following relation \[\lambda =\frac{1}{m\upsilon },\,\,\,\,\,\,\,\,\,h=6.626\times {{10}^{-34}}Js\] Working it out: \[\lambda =\frac{6.626\times {{10}^{-34}}}{0.1\times 10}\] \[=6.626\times {{10}^{-34}}m\]