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 cm × 2 cm and the area of the landscape photographed is 400 km ². The focal length of the lens in the drone camera is:

Optics: JEE Main 2025 Physics question

JEE Main 2025 · 24 Jan, Evening shift · Q42

JEE Main 202524 Jan, Evening shiftPhysicsMediumOptics190× since 2002

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 cm

\times

2 cm and the area of the landscape photographed is 400 km

^2

. The focal length of the lens in the drone camera is:

JEE Main 2025 · 24 Jan, Evening shift · Q42

JEE Main 202524 Jan, Evening shiftPhysicsMediumOptics190× since 2002

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 cm

\times

2 cm and the area of the landscape photographed is 400 km

^2

. The focal length of the lens in the drone camera is: