A film projector magnifies a `100cm^(2)` film strip on a screen. If the linear magnification is 4, the area of the magnified film on the screen is

Options

A. 1600 `cm^(2)`
B. 400 `cm^(2)`
C. 800 `cm^(2)`
D. 200 `cm^(2)`

Answer

A

Explanation

Areal magnification= `("Linear magnification")^(2)`
= `(4)^(2) = 16`
Area of magnified film = `16 xx 100 = 1600 cm^(2)`.