A source of monochromatic radiation of wavelength 400 nm provides 1000 J of energy in 10 seconds. When this radiation falls on the surface of sodium, x × 10²⁰ electrons are ejected per second. Assume that wavelength 400 nm is sufficient for ejection of electron from the surface of sodium metal. The value of x is _ _ _ _ _ _ _. (Nearest integer) (h = 6.626 × 10⁻³4 Js)

Atomic Structure: JEE Main 2021 Chemistry question

JEE Main 2021 · 25 Jul, Morning shift · Q18

JEE Main 202125 Jul, Morning shiftChemistryHardAtomic Structure113× since 2002

A source of monochromatic radiation of wavelength 400 nm provides 1000 J of energy in 10 seconds. When this radiation falls on the surface of sodium, x

\times

10²⁰ electrons are ejected per second. Assume that wavelength 400 nm is sufficient for ejection of electron from the surface of sodium metal. The value of x is ______________. (Nearest integer) (h = 6.626

\times

10^

-

34 Js)

Your answerType your answer. Integers and decimals are accepted.

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