Geometrical Optics JEE Main 2025 | Drone Camera Focal Length

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JEE MAIN 2025

24-01-2025 SHIFT-2

Question

A photograph of a landscape is captured by a drone camera at a height of 18 km . The size of the camera film is $2 \mathrm{~cm} \times 2 \mathrm{~cm}$ and the area of the landscape photographed is $400 \mathrm{~km}^{2}$. The focal length of the lens in the drone camera is:

Select the correct option:

A

1.8 cm

B

2.5 cm

C

2.8 cm

D

0.9 cm

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

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