Avase with mass m falls from height h to the floor. which of the following is true? a. it is not an isolated system because the vase moves. b. the law of conservation of energy applies. c. there is no pe, so no conservation of energy. d. the ke can change, so there is no conservation of energy.

magnified images possible images can be real = projected onto a screen

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