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CEM 141 CHAPTER 2 AND 3 LEARNING OBJECTIVES Questions & 100% Verified Correct Answers with complete solutions (Latest update $7.99   Add to cart
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CEM 141 CHAPTER 2 AND 3 LEARNING OBJECTIVES Questions & 100% Verified Correct Answers with complete solutions (Latest update

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CEM 141 CHAPTER 2 AND 3 LEARNING OBJECTIVES Questions & 100% Verified Correct Answers with complete solutions (Latest update

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  • August 15, 2024
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  • 2024/2025
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  • cem 141 chapter 2 and 3 learning objectives

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CEM 141 CHAPTER 2 AND 3 LEARNING
OBJECTIVES
The wavelength is inversely proportional to the frequency. A longer wavelength, the less
frequency there will be. The more frequency, the decrease in the size of the wavelength.
-speed of light= wavelength (velocity) - ANS-Describe the relationship between the frequency,
wavelength and velocity of a wave.

Ranking of electromagnetic radiation. UV is to the far left while IR is to the far right. -
ANS-VIBGYOR

Higher frequency
Lower wavelength
High energy - ANS-UV characteristics

Lower frequency
Higher wavelength
Low energy - ANS-IR Characteristics

Radiowaves
microwaves
xrays
gamma rays - ANS-Rank the waves from lowest to highest energy

When we have waves that go through a barrier with a slit, they make a diffracted wave. When
particles go through the barrier with the slit, the particles do not diffract. When two waves hit
each other at the same time, they will form a new wave that will have peaks and troughs of the
sum of their new wavelengths and troughs. If peak of one wave aligns with trough of other, they
will cancel. - ANS-Experimental evidence for why electromagnetic radiation is a wave.

Claim: Electromagnetic radiation is a wave.
Evidence: Diffraction and interference.
Reasoning:When we have waves that go through a barrier with a slit, they make a diffracted
wave. When particles go through the barrier with the slit, the particles do not diffract. When two
waves hit each other at the same time, they will form a new wave that will have peaks and
troughs of the sum of their new wavelengths and troughs. If peak of one wave aligns with trough
of other, they will cancel. - ANS-Claim, evidence and reasoning for why electromagnetic
radiation is a wave.

When short wavelength (high frequency) light shines on a metal surface, electrons are emitted
creating a current. If the light intensity is increased- more electrons are emitted. There is a

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