Part 2 Ratios are very convenient to work with. In particular, similar triangles allow you to caleulate distances indirecetly. For this, we will use the formula for similar triangles: hz dz h, di Using the ratio fomula find the height of the tree in the picture below. Show your calcul ations. How tall is the tree if Masha is 3 feet tall? Masha is standing 12 feet away from the tree. Her shadow is 5 feet.

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Wien's displacement law

Students often get confused between Wien's displacement law and Planck's radiation law. Although both are historically related, yet they are conceptually different. Planck's law helps determine the spectrum of a blackbody, while Wien's law determines the relationship between peak wavelength and temperature.