(a)
The power received by the city from the space mirror reflecting light.
(a)
Answer to Problem 60P
The power received by the city from the space mirror reflecting light is
Explanation of Solution
Given info: The diameter of the space mirror is
The formula to calculate the area of space mirror is,
Here,
Substitute
The formula to calculate the net power received by the mirror station is,
Here,
Substitute
The formula to calculate the power received by the city is,
Substitute
Thus, the power received by the city from the space mirror reflecting light is
Conclusion:
Therefore, the power received by the city from the space mirror reflecting light is
(b)
The intensity of light received by the city.
(b)
Answer to Problem 60P
The maximum intensity of light received by the city is
Explanation of Solution
Given info: The diameter of the space mirror is
The formula to calculate the area of space mirror is,
Here,
Substitute
The formula to calculate the net power received by the city is,
Here,
Rewrite the above equation to find the value of
Substitute
Thus, the maximum intensity of light received by the city is
Conclusion:
Therefore, the maximum intensity of light received by the city is
(c)
The percentage of vertical component of the intensity of sunlight at St. Petersburg, when the sun reaches at an angle of
(c)
Answer to Problem 60P
The percentage of vertical component of the intensity of sunlight at St. Petersburg, when the sun reaches at an angle of
Explanation of Solution
Given info: The diameter of the space mirror is
The formula to calculate the intensity of light on earth is,
Substitute
The sunlight reaches the city St. Petersburg when the sun reaches at an angle of
Substitute
The formula to calculate the percentage of
Substitute
Thus, the percentage of vertical component of the intensity of sunlight at St. Petersburg, when the sun reaches at an angle of
Conclusion:
Therefore, the percentage of vertical component of the intensity of sunlight at St. Petersburg, when the sun reaches at an angle of
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Chapter 24 Solutions
Principles of Physics
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