Question

Example 1.1: What is the solid angle subtended
by the moon at any point of the Earth, given
the diameter of the moon is 3474 km and its
distance from the Earth 3.84x108 m.



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Answer 1

Answer:

yes, this is your answer

Answer 2

Hey mate!

This is your answer given above in the attachment✔

Explanation:

Here, we need to find out the solid angle subtended by the moon at earth.

The distance of the moon from the earth and the diameter of moon is given in the question already.

Now, according to formula, and given conditions,

Solid angle = Area of disc of moon / difference between distance of moon and earth.

Hence by substituting the values in the above formula, we get the final answer= 2.045×10^-5

Hope it helps you!!✔✔