The region where all of the light from the source is blocked is called:

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NTPC CBT-I (Held On: 13 Jan 2021 Shift 1)
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  1. Antumbra
  2. Shadow
  3. Umbra
  4. Penumbra

Answer (Detailed Solution Below)

Option 3 : Umbra
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RRB NTPC CBT-I Official Paper (Held On: 4 Jan 2021 Shift 1)
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Detailed Solution

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The correct answer is Umbra.

Key Points

  • Umbra: The region of the complete shadow is called the umbra.
  • In a solar or lunar eclipse, the region of the earth's shadow is divided into three parts. The three parts are:
    • Penumbra: The region of the diffuse shadow is called the penumbra.
    • Antumbra: The antumbra is the lighter part of a shadow that forms at a certain distance from the object casting the shadow.
    • Umbra: The region of the complete shadow is called the umbra.

Additional Information

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