Example 2.4 The Sun's angular diameter is measured to be 1920”. The distance D of the Sun from the Earth is 1.496 X 10¹¹ m. What is the diameter of the Sun ?
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The angular diameter of the sun is given in the units – 'seconds' and represented as ''. We know angle in seconds60 = angle in minutes and angle in minutes60 = angle in degrees. Given θ = 1920” ⟹ 192060=32′minutes ⟹3260=0.533∘ degrees.
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