The wavelength of electrons accelerated from rest through a potential difference of 40 kV is x × 10⁻¹2 m. The value of x is _ _ _ _ _ _. (Nearest integer) Give: Mass of electron = 9.1 × 10⁻³1 kg Charge on an electron = 1.6 × 10⁻¹9 C Planck's constant = 6.63 × 10⁻³4 Js

Atomic Structure: JEE Main 2021 Chemistry question

JEE Main 2021 · 20 Jul, Evening shift · Q22

JEE Main 202120 Jul, Evening shiftChemistryMediumAtomic Structure113× since 2002

The wavelength of electrons accelerated from rest through a potential difference of 40 kV is x

\times

10^

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12 m. The value of x is ___________. (Nearest integer) Give : Mass of electron = 9.1

\times

10^

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31 kg Charge on an electron = 1.6

\times

10^

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19 C Planck's constant = 6.63

\times

10^

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34 Js

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JEE Main 2021 Atomic Structure Question with Answer (20 Jul Evening shift, Q22) | JEE Arc