2. A photographer uses a light meter to measure the intensity of light from a flash bulb. The intensity for the flash bulb, I, measured in lux, is a function of the distance from the light, d, measured in metres, and can be represented by 10 I(d) = a) the average rate of change in the intensity of light for the interval [2, 5] (two decimal places). ✓✓ b) the approximate instantaneous rate of change in the intensity of light at exactly 6 m from the flash bulb (two decimal places). ✓ c) What does the sign of your answer to part b), indicate about the light intensity? ✓
2. A photographer uses a light meter to measure the intensity of light from a flash bulb. The intensity for the flash bulb, I, measured in lux, is a function of the distance from the light, d, measured in metres, and can be represented by 10 I(d) = a) the average rate of change in the intensity of light for the interval [2, 5] (two decimal places). ✓✓ b) the approximate instantaneous rate of change in the intensity of light at exactly 6 m from the flash bulb (two decimal places). ✓ c) What does the sign of your answer to part b), indicate about the light intensity? ✓
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Question
![2.
A photographer uses a light meter to measure the intensity of light from a flash bulb. The intensity for the
flash bulb, I, measured in lux, is a function of the distance from the light, d, measured in metres, and can be
represented by
10
I(d)
=
a)
the average rate of change in the intensity of light for the interval [2, 5] (two decimal places). ✓✓
b)
the approximate instantaneous rate of change in the intensity of light at exactly 6 m from the
flash bulb (two decimal places). ✓
c)
What does the sign of your answer to part b), indicate about the light intensity? ✓](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fa3258fde-398f-4fc3-8e4d-fb86dab2ddf7%2F672db638-6646-4d57-ba33-c390b31dd2ae%2Ft7yduej_processed.png&w=3840&q=75)
Transcribed Image Text:2.
A photographer uses a light meter to measure the intensity of light from a flash bulb. The intensity for the
flash bulb, I, measured in lux, is a function of the distance from the light, d, measured in metres, and can be
represented by
10
I(d)
=
a)
the average rate of change in the intensity of light for the interval [2, 5] (two decimal places). ✓✓
b)
the approximate instantaneous rate of change in the intensity of light at exactly 6 m from the
flash bulb (two decimal places). ✓
c)
What does the sign of your answer to part b), indicate about the light intensity? ✓
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