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प्रश्न
The magnification by a lens is +0.5. Name the lens and state how are u and v related?
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उत्तर
Magnification = +0.5
m = `v/u`
0.5 = `v/u`
v = 0.5u
Given that an object's distance from the lens is positive, the lens is concave.
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संबंधित प्रश्न
A lens forms an erect, magnified, and virtual image of an object. Name the device which uses this principle.
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What information we seek by the linear magnification of the image when it is positive or negative?
Define magnification produced by a lens. State its unit.
How is the magnification (m) produced by a lens related to the object distance (u) and the image distance (v)?
What is a simple microscope or a magnifying glass? Draw a ray diagram to show its function.
State two uses of magnifying glass.
