question_answer

A slide projector gives a magnification of 10. If it projects a slide of dimensions\[3\text{ }cm\times 2\text{ }cm\] on a screen, the area of the image on the screen will be

A)  \[6\,c{{m}^{2}}\]         

B)  \[60\,c{{m}^{2}}\]

C)  \[600\,c{{m}^{2}}\]       

D)  \[6000,\,c{{m}^{2}}\]

Correct Answer: C

Solution :

 Area of the image \[=(3\times 10)\times (2\times 10)\] \[=600\text{ }c{{m}^{2}}\]