Thephotograph of a house occupies an area of 1.75 cm²ona 35 mm slide. The slide is projected on to a screen, and the area ofthe house on the screen is 1.55 m².What is the linear magnification of the projector-screen arrangement?

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Solution

Area ofthe house on the slide = 1.75 cm²
Area ofthe image of the house formed on the screen = 1.55 m²
= 1.55 ×10⁴ cm²
Arialmagnification, m_a =
∴Linearmagnifications, m_l =

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Thephotograph of a house occupies an area of 1.75 cm2ona 35 mm slide. The slide is projected on to a screen, and the area ofthe house on the screen is 1.55 m2.What is the linear magnification of the projector-screen arrangement?

Area ofthe house on the slide = 1.75 cm2Area ofthe image of the house formed on the screen = 1.55 m2 = 1.55 ×104 cm2Arialmagnification, ma =∴Linearmagnifications, ml =

Thephotograph of a house occupies an area of 1.75 cm²ona 35 mm slide. The slide is projected on to a screen, and the area ofthe house on the screen is 1.55 m².What is the linear magnification of the projector-screen arrangement?

Area ofthe house on the slide = 1.75 cm²
Area ofthe image of the house formed on the screen = 1.55 m²
= 1.55 ×10⁴ cm²
Arialmagnification, m_a =
∴Linearmagnifications, m_l =