calculate the mass of photonwith wavelength 3.6 angstroms
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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.
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.
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