Peoples Physics Book Version-2

http://www.ck12.org Chapter 17. Light Version 2

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..
   
   
   
   


10. Absorbs red and green.


11. 25◦
    14..


12. 
    
    
    
    33. 3 ◦
    
    
    
    


13. 
    
    
    
    49. 7 ◦
    
    
    
    


14. No such angle


15. 
    
    
    
    48. 8 ◦
    
    
    
    


16. see example problem


17. 85 cm


18. (c)+4 units (e)− 1


19. 6 units


20. bigger;M= 3


21. (c) 1.5 units (d) 2/ 3


22. (c) 3 units (e)− 2 / 3


23. (c) 5.3 units
    22..


24. (b) 22.5 mm
    24..


25. 32 cm


26. 
    
    
    
    10. 2 ◦
    
    
    
    


27. 27 cm


28. 20 cm


29. a. 0.72 m
    27..


30. 54 cm,44 cm,21 cm, 8 .8 cm
    29..


31. 
    
    
    
    13. 5 ◦
    
    
    
    


32. 549 nm