Question

the magnification by a lens +0.5. name the lens and state how are u and v related.​

Answer 1

Question

The magnification by a lens is +0.5. Name the lens and state how are u and v related?

Knowledge Required

• Negetive Magnification shows that the image is inverted and real.
• Positive magnificatin shows that Image formed is erect and virtual.

Answer

The lens is concave lens

$\huge \mathsf{m = \frac{v}{u} }$

Step-by-step Explanation

Concave lens always form virtual and erect.

Therefore it's magnification will be positive.