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The photograph of a house occupies an ar...

The photograph of a house occupies an area of `1.75 cm^(2)` on a 35 mm side. The slide is projected on to a screen, and the area of the house on the screen is `1.55 m^(2)`. What is the linear magnification of the projector-screen arrangement.

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NCERT BANGLISH-UNITS AND MEASUREMENT-EXERCISE
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  2. The mean diameter of a thin brass rod is to be measured by vernier cal...

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  7. State the number of significant 6.320 J

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  9. State the number of significant 0.0006032 m^(2)

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