Practicing Success
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CUET Preparation Today
The tail of a comet is directed away from the sun because of which reason? |
the comet rotates around the sun, the lighter mass of the comet is pushed away due to the centrifugal force alone. the comet rotates, the lighter mass of the comet is attracted by some star situated in the direction of its tail. The radiation pressure emitted by the sun on the comet throws its tail away from the Sun. The tail of the comet always exists in the same orientation. |
The radiation pressure emitted by the sun on the comet throws its tail away from the Sun. |
The correct answer is Option (3) - The radiation pressure emitted by the sun on the comet throws its tail away from the Sun. Comet tails will always point away from the sun because of the radiation pressure of sunlight. The force from sunlight on the small dust particles pushing them away from the sun is greater than the force of gravity acting in the direction toward the sun. |
