An Electron Is Accelerated Through a Potential Difference of 25

question 6

Multiple Choice

An electron is accelerated through a potential difference of 25 000 V.What is the de Broglie wavelength of the electron (in m) ?

• A)5.9 *10 ^{- 12}
• B)6.8 *10 ^{- 12}
• C)6.5*10 ^{- 12}
• D)7.8 *10 ^{- 12}
• E)5.5 *10 ^{- 12}

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Definitions:

Methyllithium

A highly reactive organolithium reagent used in organic synthesis to form carbon-carbon bonds.

Pyridine

A basic nitrogen-containing heterocyclic aromatic compound, often used as a solvent and in the synthesis of various organic compounds.

LDA

Lithium diisopropylamide, a strong, non-nucleophilic base used in organic synthesis to deprotonate weak acids.

Acetophenone

A colorless, viscous liquid used in fragrances and as a solvent, characterized by a sweet, pungent smell, belonging to the ketone family.