Question

1. Two devices that can be used to breakdown a spectrum into its components are the a. telescope and microscope

b. telescope and prism

c. diffraction grating and microscope d. prism and diffraction grating

2. The color cyan is made up of what two primary colors?

a. green and blue                   b. green and red

c. red and blue                       d. none of the above

3.

Using the chart above, what color/wavelength could the brain perceive if the eye sends the following code to the brain via the optic nerve?

Type I = 0      Type II = 14 Type III = 7

a. 500 nm                   b. 525 nm

c. 550 nm                   d. 575 nm

4. Which of the following colors is scattered the least in the atmosphere?

a. red

b. green c. blue

d. yellow

5.

The emission spectrum shown above could be for light produced by

a. an incandescent light bulb

b. the sun

c. hydrogen gas

d. a green LED

6. White objects appear white because they…

a. reflect all wavelengths of visible light equally

b. scatter light of all wavelengths in a 360 degree direction c. exhibit total internal reflection

d. absorb all wavelengths of visible light equally

7. Lemons appear yellow because they…

a. absorb red and green and scatter blue light.

b. absorb blue and scatter red and green light.

c. absorb blue and scatter yellow light.

d. absorb yellow and scatter red and green light.

8. A nearsighted person’s eyes

a) refract light too little and focus images of distant objects in front of the retina.

b) refract light too much and focus images of distant objects behind the retina.

c) refract light too much and focus images of distant objects in front of the retina.

d) have pupils that are too small.

9. At present, a compact disc can only hold about 1 hour of music. This limit is due in large part to the fact that

a) a compact disc cannot turn faster than about 5 turns per second without experiencing a net torque of zero.

b) light cannot be focused to a spot that is significantly smaller than its wavelength.

c) the ridges in the aluminum layer of the compact disc cannot experience destructive interference unless they have a wavelength that is almost equal to the distance between them.

d) a compact disc cannot turn slower than about 5 turns per second without experiencing a net torque of zero.

10. On average, how much sunlight is typically available on the ground of the Earth?

a) 171 Watts per sq. meter.

b) 1368 Watts per sq. meter

c) 174 Petawatts per sq. meter.

d) 11 Watts per sq. meter

Answer 1

1. Two devices that can be used to breakdown a spectrum into its components are the

d. prism and diffraction grating

2. The color cyan is made up of what two primary colors?

a. green and blue

4. Which of the following colors is scattered the least in the atmosphere?

a. red

5.The emission spectrum shown above could be for light produced by

b. the sun

6. White objects appear white because they…

d. absorb all wavelengths of visible light equally

7. Lemons appear yellow because they…

b. absorb blue and scatter red and green light

8. A nearsighted person’s eyes

a) refract light too little and focus images of distant objects in front of the retina

9. At present, a compact disc can only hold about 1 hour of music. This limit is due in large part to the fact that

d) a compact disc cannot turn slower than about 5 turns per second without experiencing a net torque of zero.

10. On average, how much sunlight is typically available on the ground of the Earth?

a) 171 Watts per sq. meter