如图所示一束光线与主光轴平行且宽度为a照射到一个凹透镜上经过拆射后在距透镜l的光屏上形成一个宽度为b的光�则此凹透镜的焦距为alb Template




You need a modern browser try chrome, to view this.

Background image: Hide Show

View Larger Image Image Credit: 1010jiajiao.com






Try and sketch some of theseTrail, Bard, Camel, Squirrel, Quill, Lawnmower, Mandolin, Cabin, Penguin, Pills, view more ideas


please wait, the page is loading...

More Sketches

Take a peek at some of the sketches created by our users, are you a sketchite?

anonymous
anonymous
sketch #3042 Tobi by Mirnes Sinanovic


anonymous
anonymous
sketch #4319


anonymous
anonymous
sketch #5258 Adventure Time by Kheith Ryan Lubiano


anonymous
anonymous
sketch #3059


anonymous
anonymous
sketch #5279


anonymous
anonymous
sketch #5114 Doraemon by Carrieann Benthem


Donara Smbatyan
sketch #1448 donara


anonymous
anonymous
sketch #3701 amazing Skull


sketchmaster
sketch #2457 cool beans brother


anonymous
anonymous
sketch #2022


anonymous
anonymous
sketch #3986


anonymous
anonymous
sketch #846 cat fridayz z z zzzz zz


anonymous
anonymous
sketch #3398 Sharingan by حيرتني بصمتها


anonymous
anonymous
sketch #4933 Tobi by Abdelwahab Haik


James Forest
sketch #3014 Fancy "S "


anonymous
anonymous
sketch #5039


anonymous
anonymous
sketch #1669


anonymous
anonymous
sketch #3590


anonymous
anonymous
sketch #5170


anonymous
anonymous
sketch #5186


Donara Smbatyan
sketch #1449 donara


anonymous
anonymous
sketch #1695


anonymous
anonymous
sketch #2371


anonymous
anonymous
sketch #214 bugs bunny


anonymous
anonymous
sketch #5230


anonymous
anonymous
sketch #5011


anonymous
anonymous
sketch #4503 Naruto Biju Mode by Jessie Lightwood

tomski如图所示一束光线与主光轴平行且宽度为a照射到一个凹透镜上经过拆射后在距透镜l的光屏上形成一个宽度为b的光�则此凹透镜的焦距为alb coloring