19 verified questions · ~21 minutes · answer key checked against the official NTA final key across multiple sources. Text-only questions (diagram-based excluded until they can be shown properly).
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 km². The focal length of the lens in the drone camera is:
The temperature of a body in air falls from 40 °C to 24 °C in 4 minutes. The temperature of the air is 16 °C. The temperature of the body in the next 4 minutes will be:
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