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Difference between revisions of "Convex Lens"

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| style="height:20px; width:200px; text-align:center;" |A '''convex lens''' [[focus|focuses]] [[parallel]] [[Light Ray|rays]] to a [[Focal Point|focal point]].
 
| style="height:20px; width:200px; text-align:center;" |A '''convex lens''' [[focus|focuses]] [[parallel]] [[Light Ray|rays]] to a [[Focal Point|focal point]].
 
|}
 
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==Key Stage 4==
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===Meaning===
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A '''convex''' [[lens]] is a shaped piece of [[glass]] that is thickest at the centre and thinnest at the edges.
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{| class="wikitable"
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|-
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|[[File:ConvexLens.png|center|100px]]
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|[[File:ConvexLensSymbol.png|center|100px]]
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|-
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| style="height:20px; width:200px; text-align:center;" |A picture of a '''convex lens'''.
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| style="height:20px; width:200px; text-align:center;" |They symbol used in [[diagram]]s to represent a '''convex lens'''
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|}
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===About Convex Lenses===
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: A '''convex lens''' causes [[parallel]] [[Light Ray|rays]] of [[light]] to [[converge]], so it can also be called a [[Converging Lens|converging lens]].
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: A '''convex''' [[lens]] is used to [[focus]] [[light]].
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===Finding the Focal Length===
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{| class="wikitable"
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|-
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|[[File:ConvexLensFocalPoint.png|center|500px]]
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|-
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| style="height:20px; width:200px; text-align:center;" |A '''convex lens''' [[focus|focuses]] [[parallel]] [[Light Ray|rays]] to a [[Focal Point|focal point]].
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|}
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: The [[Focal Length|focal length]] of a '''convex lens''' is the distance between the [[Focal Point|focal point]] and the centre of the [[lens]].

Revision as of 10:01, 24 February 2019

Key Stage 3

Meaning

A convex lens is a shaped piece of glass that is thickest at the centre and thinnest at the edges.

ConvexLens.png
ConvexLensSymbol.png
A picture of a convex lens. They symbol used in diagrams to represent a convex lens

About Convex Lenses

A convex lens causes parallel rays of light to converge, so it can also be called a converging lens.
A convex lens is used to focus light.
ConvexLensFocalPoint.png
A convex lens focuses parallel rays to a focal point.

Key Stage 4

Meaning

A convex lens is a shaped piece of glass that is thickest at the centre and thinnest at the edges.

ConvexLens.png
ConvexLensSymbol.png
A picture of a convex lens. They symbol used in diagrams to represent a convex lens

About Convex Lenses

A convex lens causes parallel rays of light to converge, so it can also be called a converging lens.
A convex lens is used to focus light.


Finding the Focal Length

ConvexLensFocalPoint.png
A convex lens focuses parallel rays to a focal point.
The focal length of a convex lens is the distance between the focal point and the centre of the lens.