Calculate the mass of photon with wavelength 3.6 armstrong
Answers
lamda = 3.6 angstrom = 3.6 x 10^-10 m
velocity of photon = velocity of light
m = h/lamda*v ( from de-brogile’s equation)
m = 6.626 x 10^-34/3.6 x10^-10 x 3 x 10^8
m = 6.626 x 10^-32/10.8
m = 0.6135 x 10^-32
m = 6.135 x 10^-33 kg
Hope this will help!
Answer:
λ = h / MV
M = h / λV
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M --- mass of proton
h --- planck's constant
λ --- Wave length
V --- Velocity
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λ = 3.6 A⁰ = 3.6 × 10⁻¹⁰ m
h = 6.626 × 10 ⁻³⁴
V = 3 × 10⁸ m/s
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∴ M = ( 6.626 × 10 ⁻³⁴ ) / [ ( 3.6 × 10⁻¹⁰ ) × ( 3 × 10⁸)]
= 6. 135 × 10⁻³³ kg