3. In the figure below, a telescope is oriented so that it can view a star. However, there is a cold front (a mass of cold air intruding into a mass of warm air) through which the starlight must travel. What would you suggest to the telescope operator about the direction to point the telescope? If the cold front were not there, then clearly the telescope is pointed correctly. Should the operator point higher, lower or the same as what is shown? Explain your answer in terms of the path of the starlight, and the difference between cold and warm air. Hint: Draw the best normal line to the point where the ray penetrates the warm/cold air interface. Then draw the path of the starlight through the cold air to the ground. Move the telescope left or right as needed to intercept the ray, and determine which way the telescope barrel must swivel (up, down or no change). *