Peoples Physics Book Version-3

http://www.ck12.org Chapter 26. Answers to Selected Problems

2.− 9. 8 × 10 −^5 V

2. Zero
   
   
   1. Yes
   
   
   2. No
   
   
   3. Because they turn current flow on and off.
   
   
   4. 0.5 V
   
   
   5. 0.05 A
   
   
   6. 0.05 A
   
   
   7. 5.5 V
   
   
   8. 8.25V
   
   
   9. 11×
      1.On
      2.On
      3.On,on,o f f,on,o f f,o f f,on,on
   
   
   
   


3. 6b. 10. 9 μF c. 195Ωd. 169Ωe. 1.39 A f.− 42 ◦g. 115Hz

Ch 17: Light

1..
2..
3. 2200 blue wavelengths
4. 65000x−rays
5. 6× 1014 Hz6. 3 .3 m
6..
7..
8. b. vacuum air c. 1. 96 × 108 m/s
9. 6. 99 × 10 −^7 m; 5. 26 × 10 −7 m
10..
11..
12. Absorbs red and green.
13. 25◦
14..
15. 33. 3 ◦

1. 
   
   
   
   49. 7 ◦
   
   
   
   


2. No such angle


3. 
   
   
   
   48. 8 ◦
   
   
   
   


4. b. 11.4 m c. 11.5 m


5. 85 cm


6. c.+4 units e.− 1


7. 6 units


8. bigger;M= 3


9. c. 1.5 units d. 2/ 3


10. c. 3 units e.− 2 / 3


11. c. 5.3 units
    22..


12. b. 22.5 mm