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25 Nov 2021
Given information
A uniform thin film of alcohol
lies on a flat glass plate 
When monochromatic light, whose wavelength can be changed, is incident normally, the reflected light is a minimum for
and a maximum for 
.
Step-by-step explanation
Step 1.
Explanation:
refrective index of film is given as
phase change in constructive interference is given as
Then the thickness is given as
here 
Therefore,
.......................(1)
For destructive interference, the net phase change is
Then the thickness is given as
...............(2)
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Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922
Solutions
Chapter
Section
- Problem 1
- Problem 2
- Problem 3
- Problem 4
- Problem 5
- Problem 6
- Problem 7
- Problem 8
- Problem 9
- Problem 10
- Problem 11
- Problem 12
- Problem 13
- Problem 14
- Problem 15
- Problem 16
- Problem 17
- Problem 18
- Problem 19
- Problem 20
- Problem 21
- Problem 22
- Problem 23
- Problem 24
- Problem 25
- Problem 26a
- Problem 26b
- Problem 26c
- Problem 27a
- Problem 27b
- Problem 28
- Problem 29
- Problem 30a
- Problem 30b
- Problem 31
- Problem 32
- Problem 33
- Problem 34
- Problem 35
- Problem 36
- Problem 37
- Problem 38
- Problem 39
- Problem 40
- Problem 41
- Problem 42
- Problem 43
- Problem 44
- Problem 45
- Problem 46a
- Problem 46b
- Problem 46c
- Problem 47
- Problem 48a
- Problem 48b
- Problem 49
- Problem 50
- Problem 51
- Problem 52
- Problem 53
- Problem 54
- Problem 55
- Problem 56
- Problem 57
- Problem 58
- Problem 59
- Problem 60
- Problem 61
- Problem 62a
- Problem 62b
- Problem 63
- Problem 64
- Problem 65
- Problem 66
- Problem 67
- Problem 68
- Problem 69
- Problem 70
- Problem 71
- Problem 72a
- Problem 72b
- Problem 72c