Question

REVIEW QUESTIONS I. As the frequency of electromagnetic radiation decreases, 6. A photon has a wavelength of 3 × 10-12 m. what is its wavelength will: a. increase. b. decrease. c. remain the same. d. frequency and wavelength are unrelated frequency? a. 3 x 104 Hz b. 3 X 100 Hz c. 1 x 10- Hz d. 1 X 1030 Hz g members of the electromagnetic7. Which of the following do not originate from an unstable spectrum has the ability to ionize matter? a. Radiowaves b. X-rays c. Microwaves d. Ultraviolet light nucleus? a. Alpha particles b. Beta particles c. X-rays d. Gamma rays 3. Which of the following is not within the wavelength range 8. How much activity will remain in a dose of 20 mCIaTC of electromagnetic radiation? a. 10-4 after 24 hours? (The physical half-life ofTc is 6 hours.) a. 5 mCi b. 10-12 c. 10 d. 10-6 b. 10 mCi c. 0.05 mCi d. 1.25 mC 4. Which me of the electromagnetic spectrum has the 9. The intensity of a source at 15 inches is 10 R. What will longest waragth? a. Micre b. Visibl:cat c. Radiowaves d. X-rars the intensity be at 45 inches? b. 0.74 R С. 90R d. 304 R . A diag tic s ray photon has a frequency of 2.42 X 10"10. The intensiy of a source is25at 40inches What will Hz. Wia ts its wavelength? the intensity be at 20 inches? a. 6.25 R b. 62.5 R c. 100 R c. 1.2 3-11 m] d. 12m d. 1000 R

Answer 1

13 em hadiat a) \δ24 (dees net liu within tha range ら จ 2.42x109 H2 122o Hz

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