Question

*What is the shadow obtained by the point source?*

1️⃣ Umbra
2️⃣ Penumabra
3️⃣ Light shadow
4️⃣ None of these.​

Answer 1

Answer:

1). Umbra

A shadow formed by a point light source such as a flashlight is called an umbra. It is uniformly dark and has sharp, well-defined edges. A shadow formed by an extended light source such as a fluorescent light tube has a central dark umbra surrounded by a lighter penumbra region.

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Answer 2

Answer:

light shaddow is the answer