In this tutorial, we are going to investigate the formation of images when light interacts with mirrors and combined lenses. 1: Graphically determine the location of the image in both cases below. • You must use all three "special" rays to locate the image and the rays must have arrows. • Rays should be solid if the light is actually there and they should be dashed if they are an extension of a ray either forward or backward. . Don't forget to draw the image once you locate it. C F -8 2: If the person in the diagram on the left above walked slightly closer to the mirror, would you expect the image to move to the left or to the right? Explain. While you could determine this mathematically, you must explain your answer physically using complete sentences. You are also encouraged to make some sketches to enhance your explanation.

I was given wrong answer, pls help

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Please Answer Accurately.

- Figure above shows the cross section of a wall made of two layers. The thickness of the 2 nd layer is L2= 0.70L1. The thermal conductivities of the layers are 0.25 and 0.75 W/mK, respectively and thermal conduction is steady. If the temperatures at inlet and between the layers are Ti = 30.0°C and T=8 °C, respectively; what is the outside temperature To for unit area?

Not sure about this one. Pls help