Question

Part 1: The amount of light reaching the film or the CCD array in a camera...

Part 1: The amount of light reaching the film or the CCD array in a camera is determined by the

a. lens size only

b. f-stop

c. shutter speed and f-stop

d. none of the answer given

e. shutter speed

Part 2: All following processes may be used to produce polarized light except

a. reflection

b. refraction

c. diffraction

d. absorption

e. scattering

Science   Physics   
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Homework Answers

Answer #1

1.Option C is the answer.Lens aperture and shutter speed were the factors determining how much light reaches the film or ccd array.The diameter of the lens opening is given by a value called F-stop.It is nothing but lens opening diameter divided by lens focal length.The length of the time shutter remains open is called shutter speed.

2.Polarized light is light in which there is a preferred direction for electric and magnetic vectors.Here option C is the answer.

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