True or false cfls make objects people and environments

Reference no: EM13460660

1. Cut a 1" horizontal slit on the side of the cereal box just below the nutrition information.

2. Cut a slit across the opposite side of the box and extend it 1" on either side at an angle 45 degrees above the horizontal.

3. Slide a CD into this slit.

4. Make an eyehole on the bottom of the box below the CD.

A CD has the very cool property of behaving like a reflective diffraction grating. An ordinary diffraction grating is a grid of tiny, evenly spaced opaque lines on an otherwise transparent material. Light can pass through the material but it has to bend around the lines, which are about the size of a wavelength of visible light. Different wavelengths of light bend at different angles, so light that is made up of more than one color gets "spread out" into its fundamental colors when it passes through a diffraction grating. This phenomenon is known as... diffraction! So, when light hits the CD it's reflected because of the shiny coating, but essentially diffracted because of the way it reflects off the track of zeros and ones that spirals around the bottom of the disc. And that's how the white light that enters the slit in the side of the box becomes the spectrum of colors you see when you look through the eyehole.

So what's the point? Well, it turns out that there's a lot more to white light than meets the eye.

True or False: CFLs make objects, people, and environments look gray and dull compared with how they look under incandescent light or natural daylight. Defend your response. Include how the spectroscope you created explains this dilemma. Your answer should be ½ to 1 page in length.

Reference no: EM13460660

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