Equatorial radius of which one of the following planets is closest to that of the Earth?
Show Hint
- Mercury
- Venus
- Mars
- Neptune
The Correct Option is B
Solution and Explanation
Step 1: Recall Earth's equatorial radius. The Earth's equatorial radius is approximately: \[ 6378 \, \text{km} \]
Step 2: Compare with given planets. - Mercury: \(\sim 2440 \, \text{km}\) → much smaller. - Venus: \(\sim 6052 \, \text{km}\) → very close to Earth. - Mars: \(\sim 3390 \, \text{km}\) → smaller. - Neptune: \(\sim 24,622 \, \text{km}\) → much larger.
Step 3: Closest match. Among these, Venus has an equatorial radius closest to Earth.
Final Answer: \[ \boxed{\text{Venus}} \]
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