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Assertion (A): Condensation alone cannot explain the formation of rain in warm clouds.
Reason (R): It narrows the droplet spectrum and slows sharply at the sizes where collision begins.

  • A.Both A and R are true, and R is the correct explanation of A
  • B.Both A and R are true, but R is not the correct explanation of A
  • C.A is true but R is false
  • D.A is false but R is true

Answer: A

Both are true and the reason gives both objections together, and warm clouds are observed to rain within tens of minutes rather than hours. Some mechanism beyond diffusion must broaden the spectrum and accelerate growth.

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