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?

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Solution

Area of the house on the slide = 1.75 cm²

Area of the image of the house formed on the screen = 1.55 m²

= 1.55 × 10⁴ cm²

Arial magnification, m_a =

∴Linear magnifications, m_l =

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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?

Area of the house on the slide = 1.75 cm2 Area of the image of the house formed on the screen = 1.55 m2 = 1.55 × 104 cm2 Arial magnification, ma = ∴Linear magnifications, ml =

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?

Area of the house on the slide = 1.75 cm²

Area of the image of the house formed on the screen = 1.55 m²

= 1.55 × 10⁴ cm²

Arial magnification, m_a =

∴Linear magnifications, m_l =