3. Identify at least three (3) famous scientists each that support light as a particle and light as wave.

Lei A = 60.0 cm at 270 measured from the horizontal. Let B = 80.0 cm at some angle . (a) Find the magnitude of A + B as a function of . (b) From the answer to part (a), for what value of does | A + B| take on its maximum value? What is this maximum value? (c) From the answer to pan (a), for what value of does | A + B| take on its minimum value? What is this minimum value? (d) Without reference to the answer to part (a), argue that the answers to each of parts (b) and (c) do or do not make sense.

What type of experimental evidence indicates that light is a wave?

Geometric optics describes the interaction of light with macroscopic objects. Why, then, is it correct to use geometric optics to analyze a microscope’s image?

If beam is the incoming beam in Active Figure 25.8b, which of the other four red lines are reflected beams and which are refracted beams?

The thickness of the plastic in plastic bags is about 0.001 mm. How many wavelengths of red light is that? (Hint: You can estimate a typical wavelength for red light by looking at Figure S-2a.)

What is wrong with the following expressions? How can you correct them? (a) C=AB , (b) C=AB , (c) C=AB , (d) C=AB , (e) C+2A=B , (f) C=AB , (g) AB=AB , (h) C=2AB , (i) C=A/B , and (j) C=A/B .

Suppose you are standing at the exact center of a park surrounded by a circular road. An ambulance drives completely around this road, with siren blaring. How does the pitch of the siren change as it circles around you?

Some telephoto cameras use a mirror rather than a ens. What radius of curvature mirror is needed to replace a 800 mm-focal length telephoto lens?

Why are light-years more convenient than miles, kilometres, or astronomical units for measuring certain distances?