To Calculate: The
To Check: Whether this method appear to be accurate or not.
To Explain: The reason why this method is accurate or not.
Answer to Problem 15SSC
The speed of light calculated by Roemer’s methods is
Explanation of Solution
Given:
The correct time taken for light to cross Earth orbit is
The diameter of the Earth orbit is
Formula used:
The expression for distance in terms of speed of light and time taken by t , can be expressed as
Here,
Calculation:
Roemer’s calculated the speed of light by dividing the diameter of the earth orbit by the time taken i.e.
Substitute
Since the value of
This means that the Roemer’s method was correct and that he could have determined an accurate value of the speed of light if he had known the actual time taken for light to cross Earth’s diameter.
Conclusion:
Hence, the speed of light calculated by Roemer’s methods is
Chapter 16 Solutions
Glencoe Physics: Principles and Problems, Student Edition
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