In case of a uniform disk which shell is considered as the radius of disk -the inner shell or the outer shell?
In case of a uniform disk which shell is considered as the radius of disk -the inner shell or the outer shell?

In viewing through a magnifying glass, one usually positions one's eyes very close to the lens. Does angular magnification change if the eye is moved back?
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Last Activity: 3 Years ago

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Last Activity: 3 Years ago