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Dual Nature Of Radiation And Matter

Question
CBSEENPH12048004
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de-Broglie wavelength associated with a ball of mass 1 kg having kinetic energy 0.5 J is

  • 6.63 × 10-30 m

  • 6.63 × 10-34 m

  • 1.32 × 10-33 m

  • 1.32 × 10-34 m

Solution

B.

6.63 × 10-34 m

The de-Broglie equation is an equation used to describe the wave properties matter, specifically the wave nature of the electron as given below           

de-Broglie wavelength is given by

          λ =hmv =  hp  

Where  λ  is wavelength

           h - Plankck's constant

          λ  = h2 m K

Here m = 1 kg, K = 0.5 J

         h = 6.63 × 10-34 Js

                Find λ = ?

               λ = 6.63 × 10-342 × 1 × 0.5

               λ = 6.63 × 10-34 m

Some More Questions From Dual Nature of Radiation and Matter Chapter

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