Homework #3 Conceptual Connection 2.1 - Enhanced - with Feedback 15 of 21 Consta

Question

Homework #3

Conceptual Connection 2.1 - Enhanced - with Feedback

15 of 21

Constants | Periodic Table

Part A

Arrange the following types of electromagnetic radiation in order of increasing frequency.

Rank types of electromagnetic radiation from smallest to largest frequency. To rank items as equivalent, overlap them.

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X-ray

infrared

visible

Largest frequency

Smallest frequency

The correct ranking cannot be determined.

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Part B

Arrange the following types of electromagnetic radiation in order of increasing wavelength.

Rank types of electromagnetic radiation from smallest to largest wavelength. To rank items as equivalent, overlap them.

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Help

visible

X-ray

infrared

Largest wavelength

Smallest wavelength

The correct ranking cannot be determined.

SubmitRequest Answer

Provide Feedback

Reset

Help

X-ray

infrared

visible

Largest frequency

Smallest frequency

The correct ranking cannot be determined.

Explanation / Answer

Ans. Part A. Increasing order of frequency, v

Infrared (smallest v) < Visible < X-ray (largest v)

# Part B. Increasing order of wavelength, l

X-ray (smallest l) < Visible < Infrared (largest l)

# Wavelength of an EMR is given –

                        c = v l                                   - equation 1

Where, c = speed of light (299792458 m/s)       

l = wavelength

v = frequency

Note that frequency is inversely proportional to wavelength. So, the order of frequency is opposite to that of wavelength.

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