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PHYSICS EXPERIMENTS
(LIGHT)
`In the matter of physics, the first lessons should contain nothing but
what is experimental and interesting to see. A pretty experiment is in
itself often more valuable than twenty formulae extracted from our
minds.' - Albert Einstein
www.psi-net.org
1

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LEAVING CERTIFICATE PHYSICS
LISTED EXPERIMENTS
CONTENTS
LIGHT
Measurement of the focal length of a concave mirror ...................................................... 4
Verification of Snell's law of refraction............................................................................. 6
Measurement of the refractive index of a liquid................................................................ 8
Measurement of the focal length of a converging lens ................................................... 10
Measurement of the wavelength of…

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NOTE
For examination purposes any valid method will be acceptable for describing a particular
experiment unless the syllabus specifies a particular method in a given case. Students will be
expected to give details of equipment used, assembly of equipment, data collection, data
manipulation including graphs where relevant. Students will also…

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MEASUREMENT OF THE FOCAL LENGTH OF A CONCAVE MIRROR
Apparatus
Concave mirror, screen, lamp-box with crosswire.
Concave Crosswire mirror
v
Procedure
1. Place the lamp-box well outside the approximate focal length - see notes. 2. Move the screen
until a clear inverted image of the crosswire is obtained. 3. Measure…

Page 9

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Page 10

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Results
u/cm
u1
/cm-1
v/cm
1v
/cm-1
1f
/cm-1
f/cm
Average f =
Notes
The approximate method for finding the focal length is recommended as a starting point for this
experiment. The approximate method is described in the Appendix.
A microscope lamp makes a very suitable strong light source. Cover…

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Symthiya

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Very useful indeed....

rabika

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where the notes for IAL Physics Unit-6??

rabika

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*are

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Pages in this set

Page 1

Preview of page 1

Page 2

Preview of page 2
PHYSICS EXPERIMENTS
(LIGHT)
`In the matter of physics, the first lessons should contain nothing but
what is experimental and interesting to see. A pretty experiment is in
itself often more valuable than twenty formulae extracted from our
minds.' - Albert Einstein
www.psi-net.org
1

Page 3

Preview of page 3

Page 4

Preview of page 4
LEAVING CERTIFICATE PHYSICS
LISTED EXPERIMENTS
CONTENTS
LIGHT
Measurement of the focal length of a concave mirror ...................................................... 4
Verification of Snell's law of refraction............................................................................. 6
Measurement of the refractive index of a liquid................................................................ 8
Measurement of the focal length of a converging lens ................................................... 10
Measurement of the wavelength of…

Page 5

Preview of page 5

Page 6

Preview of page 6
NOTE
For examination purposes any valid method will be acceptable for describing a particular
experiment unless the syllabus specifies a particular method in a given case. Students will be
expected to give details of equipment used, assembly of equipment, data collection, data
manipulation including graphs where relevant. Students will also…

Page 7

Preview of page 7

Page 8

Preview of page 8
MEASUREMENT OF THE FOCAL LENGTH OF A CONCAVE MIRROR
Apparatus
Concave mirror, screen, lamp-box with crosswire.
Concave Crosswire mirror
v
Procedure
1. Place the lamp-box well outside the approximate focal length - see notes. 2. Move the screen
until a clear inverted image of the crosswire is obtained. 3. Measure…

Page 9

Preview of page 9

Page 10

Preview of page 10
Results
u/cm
u1
/cm-1
v/cm
1v
/cm-1
1f
/cm-1
f/cm
Average f =
Notes
The approximate method for finding the focal length is recommended as a starting point for this
experiment. The approximate method is described in the Appendix.
A microscope lamp makes a very suitable strong light source. Cover…

Comments

Symthiya

Report

Very useful indeed....

rabika

Report

where the notes for IAL Physics Unit-6??

rabika

Report

*are