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Physics · UNITS AND MEASUREMENT
हिन्दीA slide of area \( 1.75\text{ cm}^2 \) is projected onto a screen using a projector. The area of the image of the house on the screen is \( 1.55\text{ m}^2 \). The linear magnification of the projector-screen arrangement is closest to:
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Correct answer · Option A
\( 94.1 \)
Explanation
Areal magnification \( m_A = \frac{1.55\text{ m}^2}{1.75 \times 10^{-4}\text{ m}^2} \approx 8857.14 \). Linear magnification \( m = \sqrt{m_A} = \sqrt{8857.14} \approx 94.1 \).
