Concept explainers
(a)
The time taken by the blob to travel from the point
Answer to Problem 16Q
The time taken by the blob to travel from point
Explanation of Solution
Given:
The distance between the point
The distance travelled by the blob in sideway direction is,
The distance travelled by the blob in the transverse direction is,
Formula used:
The expression for the calculation of the time is given by,
Here,
Calculation:
The speed of the blob is calculated as,
Solve further,
The time taken by the blob the point from point
Conclusion:
Therefore, the time taken by the blob from the point
(b)
The year in which the light from the point
Answer to Problem 16Q
The year in which the light from the point
Explanation of Solution
Given:
The year in which the light from the point
The distance between the point
The distance travelled by the blob in sideway direction is,
The distance travelled by the blob in the transverse direction is,
Formula used:
The distance covered by the light in the sideway direction is calculated as,
The extra time taken by the light to travel from point
The year in which the light from the point
Calculation:
The distance covered by the light in the sideway direction is calculated as,
The extra time taken by the light to travel from point
The year in which the light from the point
Conclusion:
Therefore, the year in which the light from the point
(c)
The speed of the blob across the sky on the earth.
Answer to Problem 16Q
The speed of the blob across the sky on the earth is
Explanation of Solution
Given:
The year in which the light of the blob from the point
The year in which the light of the blob from the point
The distance travelled by the blob in the transverse direction is,
Formula used:
The expression for the calculation of the speed of the blob across the sky is given by,
Calculation:
The speed of the blob across the sky on the earth is calculated as,
Conclusion:
Therefore, the speed of the blob across the sky on the earth is
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Chapter 24 Solutions
Universe: Stars And Galaxies
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