Question

If the magnification of a body of size 1 m is 2, what is the size of the image?

Answer 1

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Height of object = h = 1 m

Height of image = h' = ?

Magnification = m = 2

we know that,

m = h'/h

2 = h'/1

h' = 2 m

Height/size of image is 2 metres

Answer 2

The size of the image is 2m when the magnification of a body is 2.  

Explanation:

Height of object, h1 = 1m

Magnification, m = 2

Height of the image, h2 = ?  

According to the formula,  

Magnification is equal to the height of the image divided by the height of the object, i.e.,

$m=\frac{h 2}{h 1}$

$2=\frac{h 2}{1}$

$H 2=2 \times 1=2$

So, the height of the image is 2m.