The wavelength associated with a golf ball weighing 200 g and moving at a speed of 5 m/h is of the order

Question

The wavelength associated with a golf ball weighing 200 g and moving at a speed of 5 m/h is of the order (A) 10-10 m (B) 1020 m (C) 10-30 m (D) 10-40 m

Tardigrade Admin · Accepted Answer

According to de-Broglieâs equation λ=(h/p)=(h/mv) Given h=6.6 ×10-34 Js m=200×10-3 kg v=(5/60×60) m /s λ=(6.6 ×10-34 /200×10-3×5 (60×60))=2.38×10-30 m

Q. The wavelength associated with a golf ball weighing $200 g$ and moving at a speed of $5 m / h$ is of the order

$1 0^{- 10} m$

$1 0^{20} m$

$1 0^{- 30} m$

$1 0^{- 40} m$

According to de-Broglie’s equation
$λ = \frac{h}{p} = \frac{h}{m v}$
$G i v e nh = 6.6 \times 1 0^{- 34} J s$
$m = 200 \times 1 0^{- 3} k g$
$v = \frac{5}{60 \times 60} m / s$
$λ = \frac{6.6 \times 1 0 ^{- 34}}{200 \times 1 0 ^{- 3} \times 5 ( 60 \times 60 )} = 2.38 \times 1 0^{- 30} m$

Q. The wavelength associated with a golf ball weighing 200g and moving at a speed of 5m/h is of the order

10−10m

1020m

10−30m

10−40m