The drawing shows two objects, a and b. the arrows inthe
drawing symbolize the flow of heat into or out of an object, aswell
as work done on or by an object. find the change in theinternal
energy of the system when it is (a) object a only, (b)object b
only, (c) objects a and b together. in each case, specify whether
the change is a decrease or an increase.

increases it

answer///scientific method;

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