PH102-13 (Mirov)

HOMEWORK # 8

Textbook: Cutnell, Johnson, PHYSICS

Chapter 25. Problems: 3, 10, 19, 22, 24, 25

Chapter 26. Problems: 3, 13, 29, 33, 36, 48, 50, 61, 80, 83, 91

Due: August 8, 2001

ANSWERS TO HOMEWORK # 8

CHAPTER 25

Problem

#

3

10

19

22

24

25

Answer

14°

7.5 cm

1.0 cm

a)2.0x10² cm

b)-6.3 cm

c) upside down

-13 cm

a)concave

b)+3.1 cm

c)+2.8 cm

d) upright

-2

CHAPTER 26

Problem

#

3

13

29

33

36

48

50

Answer

1.198

1.64

1.35

(a) 53.12°

(b) 52.62°

60.1°

1.74

-0.775 cm

inverted

a)3.78 m

b)8.4x10²m (width)

1.26x10³ mm

(hight)

Problem

#

61

80

83

91

Answer

0.13 m

to the right of the second lens

-42 cm

4.8x10^-3 rad

1.1m