The de-Broglie wavelength of a ball of mass 10 g moving with a velocity of 10 ms -1 is [h=6.626 × 10-34 J s]

Question

The de-Broglie wavelength of a ball of mass 10 g moving with a velocity of 10 ms -1 is [h=6.626 × 10-34 J s] (A)  6.626× 10-33 m  (B)  6.626× 10-29 m  (C)  6.626× 10-31 m  (D)  6.626× 10-36 m

Tardigrade Admin · Accepted Answer

m=10 g=0.01 kg, v=10 ms-1 According to de-Broglie equation, λ =(h/mv) =(6.626× 10-34/0.01× 10) =6.626× 10-33 m

Q. The de-Broglie wavelength of a ball of mass $10 g$ moving with a velocity of $10 m s^{- 1}$ is $[h = 6.626 \times 1 0^{- 34} J s]$

$6.626 \times 1 0^{- 33} m$

$6.626 \times 1 0^{- 29} m$

$6.626 \times 1 0^{- 31} m$

$6.626 \times 1 0^{- 36} m$

$m = 10 g = 0.01 k g, v = 10 m s^{- 1}$
According to de-Broglie equation,
$λ = \frac{h}{m v}$
$= \frac{6.626 \times 1 0 ^{- 34}}{0.01 \times 10}$
$= 6.626 \times 1 0^{- 33} m$

Q. The de-Broglie wavelength of a ball of mass 10g moving with a velocity of 10ms−1 is [h=6.626×10−34Js]

6.626×10−33m

6.626×10−29m

6.626×10−31m

6.626×10−36m