The photograph of a house occupies an area of 1.75 cm2on 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? | Learn NCERT solution | Education portal Class 11 Physics | Study online Unit-2 Units and Measurements



Q.9:-  The photograph of a house occupies an area of 1.75 cm2on 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?

 

Answer:-

Area of the house on the slide = 1.75 cm2
Area of the image of the house formed on the screen = 1.55 m= 1.55 × 104 cm2