Glycerine in water diffuses along a horizontal column that has a cross-sectional area of 2.0 cm2. The concentration gradient is 0.03 kg/m4, and the diffusion rate is found to be 5.7e^-15kg/s. Determine the diffusion coefficient. m2/sc
a. 1.9e-13 m2/s
b. 1.7e-16 m2/s
c. 9.5e-10 m/s
d. 3.4e-20 m2/s
e. 3.8e-17 m2/s

it is easily magnetized.

you'd use the equation that establishes a relationship between  energy  and  wavelength, which looks like this

e=h⋅cλ, where

λ  - the wavelength of the photon; c  - the speed of light, usually given as  3⋅108m/s; h  -  planck's constant, equal to  6.626⋅10−34j s

plug the value you were given for the energy of the photon in the above equation to get the wavelength

e=h⋅cλ⇒λ=h⋅ce

λ=6.626⋅10−34js⋅3⋅108ms−1.257⋅10−24j=1.581⋅10−1m