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"That their main business was not put into the mind knowledge which was not there before, but to turn the mind's eye towards light so that it might see for itself." ...Plato's advice to educators(429-347BC)
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Author Topic: Physlets Optics java applet: A simple object on the left of the lens and a lens  (Read 9385 times)
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lookang
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on: September 02, 2008, 01:47:38 pm » posted from:SINGAPORE,SINGAPORE,SINGAPORE

note that the object must be on the left of the lens.

the assumption is the light source is always shining from left to right!




Physlets®, i.e., the Java applets themselves, are a registered trademark of Wolfgang Christian.

Question!
can you explore and find out the focus length of the lens?













Hint:
an object placed exactly at the focus length of the lens will result in an image at infinity!




* physletslens.PNG (10.17 KB, 639x508 - viewed 569 times.)
« Last Edit: July 25, 2009, 10:54:03 pm by lookang » Logged
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"That their main business was not put into the mind knowledge which was not there before, but to turn the mind's eye towards light so that it might see for itself." ...Plato's advice to educators(429-347BC)
 
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