Multiple choice

The swing of a spinning cricket ball in air can be explained on the basis of

  1. Sudden change in wind direction

  2. Buoyancy of air

  3. Turbulance caused by wind

  4. Bernoulli's theorem
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The swing of a spinning cricket ball is explained by Bernoulli's theorem. As the ball spins through the air, it creates a pressure difference between the two sides due to asymmetric airflow - faster-moving air on one side creates lower pressure, causing the ball to deviate (swing) in that direction. This is the same principle that explains lift on airplane wings.

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