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Magnifications in Mirrors & Lenses

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Page 1: Magnifications in Mirrors & Lenses. A measure of how much larger or smaller an image is compared with the object itself. Magnification = image height

Magnifications in Mirrors & Lenses

Page 2: Magnifications in Mirrors & Lenses. A measure of how much larger or smaller an image is compared with the object itself. Magnification = image height

A measure of how much larger or smaller an image is compared with the object itself.

Magnification = image height or image distance object height object distance

M = hi or M = - di ho do The numbers can be obtained by measurement with a ruler

or be given to you Magnification does not have any units but make sure you

use the same units for height or distance!

Page 3: Magnifications in Mirrors & Lenses. A measure of how much larger or smaller an image is compared with the object itself. Magnification = image height

OBJECTIMAGE

hi

MIRROR

dido

Parameters

ho

Page 4: Magnifications in Mirrors & Lenses. A measure of how much larger or smaller an image is compared with the object itself. Magnification = image height

NOTE: positive and negative signs are used to give information about direction in physics

di is negative if you have a virtual image

If your image is inverted then height and magnification are NEGATIVE

Page 5: Magnifications in Mirrors & Lenses. A measure of how much larger or smaller an image is compared with the object itself. Magnification = image height

Orientation of image with respect to object

Sign of M Type of image

Upright+

Virtual

Inverted-

Real

Page 6: Magnifications in Mirrors & Lenses. A measure of how much larger or smaller an image is compared with the object itself. Magnification = image height

A concave shaving mirror has an object that is 93 cm tall placed in front of it. The image produced is upright and 51 cm tall . What is the magnification of the mirror?

Page 7: Magnifications in Mirrors & Lenses. A measure of how much larger or smaller an image is compared with the object itself. Magnification = image height

A pencil is placed 25 cm in front of a concave mirror. It produces an inverted image that is 12.5 cm from the mirror. What is the magnification of the mirror?

Page 8: Magnifications in Mirrors & Lenses. A measure of how much larger or smaller an image is compared with the object itself. Magnification = image height

A mirror has a magnification of 15. If the object placed in front of it is 2cm tall, what is the height of the image?

Page 9: Magnifications in Mirrors & Lenses. A measure of how much larger or smaller an image is compared with the object itself. Magnification = image height

The magnification of a mirror that produces an inverted image is 7. How far away was the object placed from the mirror if the image produced is 2.5 cm away?

Page 10: Magnifications in Mirrors & Lenses. A measure of how much larger or smaller an image is compared with the object itself. Magnification = image height

A thin lens is a lens with a thickness (distance along the optical axis between the two surfaces of the lens) that is negligible compared to the radii of curvature of the lens surfaces.

Lenses whose thickness is not negligible are sometimes called thick lenses.

Thin lens equation= 1/f = 1/do +1/di

Page 11: Magnifications in Mirrors & Lenses. A measure of how much larger or smaller an image is compared with the object itself. Magnification = image height

Page 12: Magnifications in Mirrors & Lenses. A measure of how much larger or smaller an image is compared with the object itself. Magnification = image height

Page 13: Magnifications in Mirrors & Lenses. A measure of how much larger or smaller an image is compared with the object itself. Magnification = image height

Symptom Magnification

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Microscope magnification

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Radiometric correction Noise removal Atmospheric correction Seasonal compensation Image Reduction and Magnification Image Enhancement Radiometric

TRECWare High Frequency Digital Magnification First Prior Next Last Exit Original Image 512X480X8 bits Times Two Image without Noise Filtering Times Two,

Image formation Lenses and Mirrors. Object:p Image: q Focal length : f Magnification :M Real : light at image Virtual : no light Mirrors Lenses +p +q

Defocus Magnification

Issues with the use of telescopes Magnification Magnification determines how much larger the image is as compared to the size of the source of the light

4. IMAGE RESAMPLING - Technische Universität … · Digitales Video Resampling - 2 - Image magnification and minification are two examples of image resampling. These two processes

Microscopes. Purpose of scopes Magnification – make objects appear larger Resolution – keep the image clear

Figure S1cambridge...Figure S1. Optical microscope image of PDMS dielectric film in sensor from Figure 4(c) at lower magnification (100x). A lower magnification image of the PDMS dielectric

Microscopy Compound Light Microscope – Objective lens = real image –Eye piece = virtual image –Magnification –Condenser lens and iris diaphragm –Other

Figure S1cambridge... · 2016. 9. 21. · Figure S1. Optical microscope image of PDMS dielectric film in sensor from Figure 4(c) at lower magnification (100x). A lower magnification

MONTHLY OBSERVER’S CHALLENGE Las Vegas ......2017/03/03 · 4-5 stars between mags. 11-13 with high magnifications. The NW one was slightly larger and with high magnification, displayed

Chapter 36. Image Formation (3) Lateral magnification Mhuang24/Teaching/Phys2401/LectureNotes/...Chapter 36. Image Formation 36.1 Images Formed by Flat Mirrors p: object distance q:

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Magnification 2

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Magnification Final

Levenhuk 320 Series Biological Microscopes · achromatic objectives with 4x, 10x, 40x and 100x magnifications provide for sharp and bright images. The total magnification is calculated