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Physics
Optical Instrument
4Nebula

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Published by hanaluvbensolo, 2021-11-02 05:00:03

Uses of lenses

Physics
Optical Instrument
4Nebula

Uses of

lenses

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QAMARINA ARIFIN
PUTERI ELLYSHA

What are LE N S MADE IN PARAGUAY 077
MM
the uses
ZOOM LENS 17-35 mm 1:2-8
?of lenses

well the uses of lens can be seen in
optical instruments..

1.MAGNIFYING 2.TELESCOPE 3.MICROSCOPE
GLASS
Optical
Instruments

MAGNIFYING

GLASS

Consists of hand lens which is a
convex lens .

Therefore, helps us to magnify a
tiny object.

Used to view small objects
whereby the image formed is

.larger than the size of the objects

The object to be

magnified must be
Made of
placed within the biconvex lens
focal length of the


lens
The characteristic

image distance of images formed
Magnification = object distance
=are
-virtual
-upright
-magnified

Formation of images in
magnifying glass

' !LET S GO



TELESCOPE

An optical device used to view distant object
-Therefore it enable us to study planets and stars in
the outer space.

Made up of:

a long tube with a long focal
length lens as the objective lens
a short focal length lens as the
eyepiece

Distance between Used to observed consists of two
objective lens and
.distant object :convex lenses
=eyepiece lens
+fo fe objective lens and
eyepiece lens
Eyepieces lens act
as magnifying >f o f e
glass to enlarge
the real images objects at infinity
formed by the
Objective lens
.objective lens focusses the object to
form real and invered
image that falls on the
focal point of the
eyepiece lens

Formation of
images in
Telescopes

!GOOD LUCK



MICROSCOPE

an optical device used to view very small objects

Made up of:
a tube with two short focal length
lenses to give a much higher
magnification than a magnifying
glass

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Focal
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Formation

images in

Microscopes

' !LET S GO


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