Question

calculate the wave length of a bullet of mass 1.5g which moves with a velocity of 750m/s​


if know the answer can u help me....

Answer 1

Answer:

5.889 x 10^-35 m

Explanation:

Kindly check my attached image for the detailed explanation for this answer.

Answer 2

Answer:

The wave length of bullet is 5.9 ×$10^-28$ m .

Explanation:

Given , mass of a bullet = 1.5 g  = 0.0015kg

Velocity of bullet = 750m/s

According to De- Broglie equation

λ = $\frac{h}{mv}$

Where , h is Planck's constant  and the value of h is 6.62607015 × 10−34 joule second.

Mass = 0.0015 kg   [Given ]

v =750 m/s              [Given ]

Put the given values in the De-Broglie wavelength

λ = $\frac{h}{mv}$

⇒λ = $\frac{6.626 . 10^{-34} }{(0.0015) . (750)}$  = $\frac{6.626 }{ 15 . 75}$ = $\frac{6.626}{1125}. 10^-31$ = 0.0059 ×$10^-31$

⇒λ = 5.9 ×$10^-28$ m

Hence , the wave length of bullet is 5.9 ×$10^-28$ m .

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