JEE Main 2021 — Electromagnetic Waves Question with Solution
From: JEE Main 2021 (Online) 25th February Evening Shift
Question
The wavelength of an X-ray beam is 10. The mass of a fictitious particle having the same energy as that of the X-ray photons is kg. The value of x is __________. (h = Planck's constant)
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Show full solutionCorrect answer: 10
Correct answer
10
Step-by-step explanation
Given wavelength of an x-ray beam = 10
E =
m =
The mass of a fictitious particle having the same energy as that of the x-ray photons = h kg
x = 10
E =
m =
The mass of a fictitious particle having the same energy as that of the x-ray photons = h kg
x = 10
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