Chapter #10 Solutions - Physical Science with Modern Applications - Melvin Merken - 5th Edition

 

1. How long does it take light to travel from the sun to the earth, 93.0 million miles away? Get solution

2. A light-year is a unit of length equal to the distance light travels in a year. What is the length of a light-year in (a) kilometers? (b) miles? Get solution

3. The star Arcturus is 40.0 light-years from the earth. What is this distance in (a) kilometers? (b) miles? Get solution

4. How far away is an object if the reflection from a radar pulse is received in 93.0 microseconds? Get solution

5. Determine the frequency of light that has a wavelength of 5890 angstrom units. Get solution

6. How long does it take light to cross a room 30.0 m long? Get solution

7. If electromagnetic waves on transmission lines travel at the speed of light, how long would it take your voice to travel 5000 km on a telephone call? Get solution

8. Imagine that you are 200 m from home plate watching a baseball player hit a ball.(a) How long does it take the light wave to reach you?(b) How long does it take the sound wave from the bat striking the ball to arrive, if the speed of sound in air is 345 m/s? Get solution

9. A radar pulse returns to the receiver after a total travel time of 5 × 10−4 s. How far away is the object that reflected the wave? Get solution

10. How do Polaroid sunglasses reduce glare from a road or a body of water? Get solution

11. Discuss the evidence for the transverse-wave nature of light. Get solution

12. What experimental evidence strengthened Maxwell’s hypothesis that light and electromagnetic waves are similar? Get solution

13. List the forms of behavior in which light manifests wave properties. Get solution

14. Which color has the higher frequency, red or violet? Get solution

15. Which radiation has the shorter wavelength, radio waves or X-rays? Get solution

16. The speed of light in a clear plastic material is 1.50 × 108 m/s. What is the index of refraction? Get solution

17. If they are visible, what colors would you assign the following wavelengths: (a) 400 Å (b) 4000 Å (c) 6000 Å (d) 40,000 Å? Get solution

18. Microwave ovens use frequencies of 900 and 2560 MHz. What is the wavelength associated with each frequency? Get solution

19. What type of electromagnetic wave in free space would have a wavelength of (a) 1.00 m? (b)1.00 mm? Get solution

20. How does a microwave oven cook food? Get solution

21. When electromagnetic radiation such as light travels across a region, what is it that moves? Get solution

22. Explain the formation of a rainbow. Get solution

23. What spectral colors are complementary to (a) blue; (b) yellow; (c) magenta? Get solution

24. Why is the index of refraction always greater than or equal to 1.00? Get solution

25. (a) What color would the sky be if there were no atmosphere? (b) What proof is there? Get solution

26. Compare the number of “octaves” to which the eye responds with the number to which the ear responds. Get solution

27. Will light bend toward or away from the normal (perpendicular) when it goes from (a) air to glass? (b) water to glass? Get solution

28. Explain why the mixing of red and blue lights gives a different color than the mixing of equal amounts of red and blue pigments. Get solution

29. What part of a camera plays a role similar to that of the retina of the eye? Get solution

30. Multiple ChoiceA. Compared with the velocity of light, the velocity of radio waves is(a) less.(b) greater.(c) the same.(d) infinite.B. Polarized light is explained by the hypothesis that light consists of(a) transverse waves.(b) longitudinal waves.(c) particles.(d) an ether.C. Color is related to(a) amplitude.(b) frequency.(c) velocity.(d) quality.D. The bending of a ray of light as it passes at an angle from air into water is an example of(a) reflection.(b) diffraction.(c) refraction.(d) interference.E. The pupil of the eye adjusts for(a) long-distance vision.(b) color.(c) size of object.(d) amount of light.F. Parallel rays of light falling on a converging lens pass through the lens and(a) spread out.(b) are brought to a focus.(c) are reflected back in the original direction.(d) remain undeflected.G. A piece of green cloth(a) reflects all colors but green.(b) absorbs all colors but green.(c) absorbs only red fight.(d) reflects only red fight.H. Some of the most precise determinations of the velocity of light were made by(a) Land.(b) Maxwell.(c) Michelson.(d) Helmholtz.I. The region of the electromagnetic spectrum with wavelengths longer than 8000 A is known as the(a) ultraviolet.(b) infrared.(c) X-ray.(d) gamma ray.J. Light in a rainbow is(a) refracted only.(b) reflected only.(c) both refracted and reflected.(d) neither refracted nor reflected. Get solution