Direction: An aircraft flying at an altitude of 5000 m above mean sea level takes aerial photographs of a flat terrain having an average elevation of 1000m above mean sea level. The scale of photographs is 1:20000.
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The area covered on ground (in hectare) by each photo format of 18 cm × 18 cm is
-
- 1266
- 1276
- 1286
- 1296
Correct Option: D
Area covered on ground
= Area of photograph/ Scale²
= (0.18 × 0.18) /(1/20,000)²
= 12960,000 sq m = 1296 hectares
