In Book 3, Section 8.5 you learnt that the higher the temperature of an object, the greater the energy per photon of the light emitted with peak intensity by that object (this is shown graphically in Book 3, Figure 8.15). For an object at a given temperature, T, the light emitted with peak intensity consists of a large number of identical photons, each with the same energy, Eph, given by: Equation label:(Equation 1)
where h is the Planck constant (Book 3, Section 10.2), c is the speed of light and b is a constant called Wien's displacement constant.

i.Rearrange Equation 1 to make b the subject and then, by replacing each term of the equation by its units expressed in terms of SI base units, determine the units of bas a combination of SI base units. Include sufficient working to make it clear how you arrived at your answer. (Hint- remember that the SI unit of energy, the joule (J), is not one of the SI base units.)