The picture is attached. A student poured 500 mL of milk into one flask and 500 mL of water into another flask.
Which of the following conclusions can the student make about the physical properties
of these two liquids just by looking at the flasks?
A: The density of milk is greater than that of water.
B: Milk has a greater mass than water.
C: Milk and water are soluble fluids.
D: Milk and water have the same shape.

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

helium

oxygen

neon

sodium