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The photograph of a house occupies …

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The photograph of a house occupies an area of 1.75 cm² on a 35 mm slide. The slide is projected on to a screen and the area of the house on the screen is 1.55 m² . What is the linear magnification of the projector screen arrangement? 

  • 1 answers

Kriti Bhawsar 6 years, 8 months ago

Area of photo=1.75 cm2=1.75×10-4m2

Area of image of photo=1.55m2

Magnification (areal)=1.55/1.75×10-4=0.885×10-4

Magnification(linear)=√areal magnification

                                      =√0.885×104

                                       =0.94×102

 

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