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Question

Chemistry Question on Structure of atom

A 0.66 kg0.66\, kg ball is moving with a speed of 100 m/s100 \,m/s. The associated wavelength will be (h=6.6×10−34 Js)(h = 6.6 \times 10^{-34} \, Js)

A

6.6×10−34m6.6 \times 10^{-34} m

B

1.0×10−35m1.0 \times 10^{-35} m

C

1.0×10−32m1.0\times 10^{-32} m

D

6.6×10−32m6.6 \times 10^{-32} m

Answer

1.0×10−35m1.0 \times 10^{-35} m

Explanation

Solution

From de-Broglie equation,
λ=hmv=6.6×10−340.66×100=10−35m\lambda = \frac{h}{mv} = \frac{6.6 \times 10^{-34}}{0.66 \times 100} = 10^{-35} m