Question

Calculate the mass of a photon(light) with a wavelength of 3.6 angstrom.

Answer 1

Answer:

As we know that, 

λ = h/p

; h = plank's constant

    = 6.626×10⁻³⁴ J-s

p = momentum of proton

  = mass× velocity

  =m×v

∴λ = h/mv

⇒m = h/λv

v= velocity of light or proton = 3×10⁸ m/s

λ = 3.6 Α° = 3.6×10⁻¹⁰ m

substituting the values

m= (6.626×10⁻³⁴)/(3.6×10⁻¹⁰×3×10⁸)

   = 6.135× 10⁻³³ kg

I hope that it will help uhhh...!!!!

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