Practical exercises in light, being a laboratory course for schools of science and colleges

Reginald Stanley Clay

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• Light

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• Publié par: les_archives_du_savoir
• Nombre de lectures: 11
• Langue: English
• Poids de l'ouvrage: 10 Mo

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EXERCISESTICAL
:CO
ICO IN LIGHTCN
10)
LAYCPRESENTED
TO
THE OFUNIVERSITY TORONTO
BY
II IPRACTICAL
EXERCISES IN L'IGHTPRACTICAL
EXERCISES IN LIGHT
BEING A LABORATORY COURSE FOR
SCHOOLS OF SCIENCE AND COLLEGES
BY
S. B.A.REGINALD D.Sc.CLAY, (Cantab.), (Lond.)
PRINCIPAL OF THE NORTHERN POLYTECHNIC INSTITUTE
LONDONHOLLOWAV,
!
Eontron
MACMILLAN AND LIMITEDCO.,
NEW YORK : THE MACMILLAN COMPANY
1902
All reservedrightsvi PREFACE
slower members of the class .are the fundamentalcompleting
exercises.
I am to thank Mr. F. Castle for to use theglad permission
and H. E. for me to includetable of Mr.sines, Hadley allowing
the table of at the end of the book thanks are
;tangents my
also due to Prof. R. A. and Mr. A. T. Simmons forGregory
much valuable advice and criticism while the book was passing
the and to Mr. H. Waite for his assistance inthrough press,
thecorrecting proofs.
that would to make the book moreAny suggestions help
in would beor hints for newuseful, Light,any experiments
welcomed from teachers the exercises in theirgladly using
laboratories.
REGINALD S. CLAY.
TUFNELL N.PARK,
November; 1902.CONTENTS
CHAPTER I
PIN EXPERIMENTS
SECTION PAGE
1 Laws of Reflection of ILight
2 Laws of Refraction 6
3 Refraction with a Prism 9Experiments
at4 Caustic Refraction a Plane Surfaceby 13
5 Reflection at a Curved Surface 14
6 Course of the refracted a Curved Surface . . 18throughRays
7 Paths of refracted a Lens .....Cylindrical 19Rays through
208 Formation of the Rainbow
of a the9 Determination of the Refractive Index Liquid by
Critical 24Angle
aDetermination of the Refractive Index of the10 Liquid by
from the to Glass 28Critical Angle Liquid
Determination of the Refractive Index of a Substance11 by
the Thickness 30measuring Apparent
a Piece of Parallel and Determina-12 Selection of Glass, Rough
the between the Surface of a Piece oftion of Angle nearly
GlassParallel 32
CHAPTER II
LENSESMIRRORS AND
formed a Concave Lens .13 Position and Nature of the 38Image by
of an formed14 The Position and Nature of the Image Object by
Refraction a Convex Lens 39throughCONTENTS
SECTION PAGE
15 The Position and Nature of the formed ReflectionImage by
-in a Convex Mirror 41
16 The Position and Nature of the formed ReflectionImage by
at a Concave Mirror 42
CHAPTER III
FOCAL LENGTH OF MIRRORS AND LENSES OPTICAL BENCH
17 The Bench andOptical Fittings 46
Rule of18 Signs 50
Focal of Convex Lens19 Length 53
of Lens20 Focal Concave 62Length
Mirror21 Focal ofLength 67
22 Focal of Convex MirrorLength 71
23 The a Lens is to the Ratio ofMagnification produced by equal
the Distances of the and the from the Lens .Image Object 77
24 To find the Refractive Index of Water the Loss of Powerby
of a Lens in itplaced 78
CHAPTER IV
OPTICAL INSTRUMENTS
25 The Astronomical 81Telescope
26 Galileo's 82Telescope
27 The Terrestrial 82Telescope
28 The 82Compound Microscope
29 LanternOptical 83
30 To find the Power of aMagnifying Telescope 85
31 The Lens 86Tangent Gauge
32 The Sextant 88