To Draw: A graph of the illuminance produced by a lamp with a luminous flux of 2275 lm at a distance from 0.50 m and 5.0 m.
Explanation of Solution
Given:
Luminous flux is
The range of distance is
Formula used:
The expression for illumination is given by
Here,
Calculation:
Substitute
Now for each value of
Substitute
Substitute
Substitute
Substitute
Substitute
These values can be shown in a tabular form as
d (m) | E(lx) |
0.50 | 724 |
1.50 | 80.5 |
2.50 | 28.9 |
3.50 | 14.7 |
4.50 | 8.94 |
5.00 | 7.24 |
Label the vertical axis as
Conclusion:
Hence, the required graph is drawn.
Chapter 16 Solutions
Glencoe Physics: Principles and Problems, Student Edition
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