If the frequency is doubled, Rayleigh scattering intensity increases by how many times?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $9.99Unlock all

Prepare confidently for the Davies Publishing SPI Test. Engage with expertly crafted questions and explanations designed to enhance your test-taking skills. Get ahead of the game!

Multiple Choice

If the frequency is doubled, Rayleigh scattering intensity increases by how many times?

Explanation:
Rayleigh scattering scales with the fourth power of frequency (I ∝ f^4). So if the frequency doubles, the scattered intensity becomes (2f)^4 = 16f^4, i.e., 16 times as large. You can also see this by considering wavelength: doubling frequency halves the wavelength, and since I ∝ 1/λ^4, the intensity becomes (1/(λ/2)^4) = 16 times. Therefore the correct result is sixteen times.

Rayleigh scattering scales with the fourth power of frequency (I ∝ f^4). So if the frequency doubles, the scattered intensity becomes (2f)^4 = 16f^4, i.e., 16 times as large. You can also see this by considering wavelength: doubling frequency halves the wavelength, and since I ∝ 1/λ^4, the intensity becomes (1/(λ/2)^4) = 16 times. Therefore the correct result is sixteen times.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy