JEE Mains · Physics · STD 11 - 1. units,dimensions and measurement
The distance of the Sun from earth is \(1.5 \times 10^{11} \,m\) and its angular diameter is \((2000) \,s\) when observed from the earth. The diameter of the Sun will be ...........
- A \(2.45 \times 10^{10} \,m\)
- B \(1.45 \times 10^{10} \,m\)
- C \(1.45 \times 10^{9} \,m\)
- D \(0.14 \times 10^{9} \,m\)
Answer & Solution
Correct Answer
(C) \(1.45 \times 10^{9} \,m\)
Step-by-step Solution
Detailed explanation
\(\theta=\frac{ d }{ r }\) \(\frac{2000}{60 \times 60} \times \frac{\pi}{180}=\frac{ d }{1.5 \times 10^{\prime \prime}}\) \(\Rightarrow d =\frac{2000}{60 \times 60} \times \frac{\pi}{180} \times 1.5 \times 10^{\prime \prime}\)…
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