Calculate the wavelength (in nanometer) associated with a proton moving at 1.0×10³ms⁻¹ (Mass of proton = 1.67×10⁻²⁷kg and h = 6.63×10⁻³⁴Js) (1) 2.5 nm (2) 14.0 nm (3) 0.032 nm (4) 0.40 nm

(4) 0.40 nm Given m_p = 1.67×10⁻²⁷kg h = 6.63×10⁻³⁴Js v = 1.0×10³ms⁻¹ We know wavelength λ = h/mv ∴λ = 6.63×10⁻³⁴/(1.67×10^(-27 )× 1.0×10³) = 3.97×10⁻¹⁰ ≈ 0.4nm

Chapter: Random· Chemistry

Calculate the wavelength (in nanometer) associated with a proton moving at 1.0×103ms-1

Calculate the wavelength (in nanometer) associated with a proton moving at 1.0×10³ms^-1 (Mass of proton = 1.67×10^-27kg and h = 6.63×10^-34Js)

(1) 2.5 nm

(2) 14.0 nm

(3) 0.032 nm

(4) 0.40 nm

Doubtly Asked 22 Jul 2022 Student doubt Save WhatsApp Report

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(4) 0.40 nm

Given m_p = 1.67×10^-27kg

h = 6.63×10^-34Js

v = 1.0×10³ms^-1

We know wavelength λ = h/mv

∴λ = 6.63×10^-34/(1.67×10^-27× 1.0×10³)

= 3.97×10^-10

≈ 0.4nm

Doubtly · 22 Jul 2022 Report

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Calculate the wavelength (in nanometer) associated with a proton moving at 1.0×103ms-1

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