Imagine, a comet is seen passing Uranus. The length of its tail was measured to be 3 km. What can be the possible length of its tail when it passes by the Earth?

Less than 3 km

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3 km

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Greater than 3 km

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It will not have a tail

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Solution

The correct option is C
Greater than 3 km

The length of a comet's tail grows in size as it approaches Sun. Thus it's length as it passes the earth will be greater than 3 km. Because Earth is much closer to the sun compared to Uranus.

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(a) less than that of Neptune.
(b) more than that of Neptune.
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(d) less than that of Uranus.

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Imagine, a comet is seen passing Uranus. The length of its tail was measured to be 3 km. What can be the possible length of its tail when it passes by the Earth?

The correct option is C Greater than 3 km The length of a comet's tail grows in size as it approaches Sun. Thus it's length as it passes the earth will be greater than 3 km. Because Earth is much closer to the sun compared to Uranus.

The correct option is C
Greater than 3 km

The length of a comet's tail grows in size as it approaches Sun. Thus it's length as it passes the earth will be greater than 3 km. Because Earth is much closer to the sun compared to Uranus.