1.

A slideprojecto gives magnification of 10. If a slide of dimensions 3 cm xx 2 cm is projector on screen, the area of image on screen is :

Answer»

`300 CM^(@)`
`15 cm^(@)`
`600 cm^(@)`
`25 cm^(@)`

SOLUTION :(c ) Linear magnification = 10
AREAL magnification = `10^(2) = 100`

`therefore (A_(2))/(A_(1)) = 100`
`A_(2) = A_(1) xx 100`
`3 xx 2 xx 100`
`600 cm^(2)`


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