Question

mass of a photon of wavelength lambda is given by

Answer 1

heyy dear samreen ur answer.......

lamda = 3.6 angstrom =  3.6 x 10^-10 mvelocity 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 10^8m = 6.626 x 10^-32/10.8m = 0.6135 x 10^-32m = 6.135 x 10^-33 kg...........

hope it will help u................@kundan

Answer 2

Answer:

Momentum=p

p=h/lambda=mass*velocity

mass=h/(lambda*velocity)

mass=6.63*10^(-34)/(3. 6*10^(-10)*3*10^(8))

mass=0.613888*10^(-32)kg

mass=6.13888*10^(-33)kg