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- Problem 1 A certain He-Ne laser cavity of the type shown in Figure 6 has a mirror separation of 30 cm. The helium-neon laser gain medium is capable of supporting laser light of wavelengths in the range from A1 = 632.800 nm to A2 = 632.802 am. Find: a. The approximate number m of half-wavelengths that fit into the cavity b. The range of frequencies supported by the helium-neon gain mediumQUESTION 3 For problem 35.35 calculate the thickness of the acetone in micrometers if the wavelength of the source is changed to 568.0 nm. 5 sig. figs.X rays with a wavelength of 0.15 nm undergo first- order diffraction from a crystal at a 64° angle of incidence. ▾ Part A What is the angle of second-order diffraction? Express your answer using two significant figures. 02 = ΜΕ ΑΣΦ Submit Request Answer ?
- Only need part aA pulsed laser produces brief bursts of light. One such laser emits pulses that carry 0.400 J of energy but last only 300 fs . Part A What is the average power during one of these pulses? Pav = 1.33x1012 W Submit Previous Answers Correct Part B Assuming the energy is emitted in a cylindrical beam of light 2.10 mm in diameter, calculate the average intensity of this laser beam. ? Iay = W/m? Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining Part C What is the rms electric field in this wave? ? Erms = V/m Submit Request AnswerQ1
- What is the maximum wavelength λmax for a hot object of 10,000 oC? A. λmax = 282 nm B. λmax = 282 m C. λmax = 482 nm D. λmax = 289 nmA hydrogen atom, initially at rest, absorbs an ultraviolet photon with a wavelength of λ = 169.8 nm. ▼ Part A What is the atom's final speed if it now emits an identical photon in a direction that is perpendicular to the direction of motion of the original photon? Express your answer to three significant figures and include appropriate units. .0 Value Submit ΜΑ Part B Units Request Answer μA What is the atom's final speed if it now emits an identical photon in a direction that is opposite to the direction of motion of the original photon? Express your answer to three significant figures and include appropriate units. ? Q Search P Pearson Copyright © 2022 Pearson Education Inc. All rights reserved. | Terms of Use | Privacy Policy | Permissions | Contact Us | ט 7:22 12/11/2552 RADIATED EMISSIONS AND SUSCEPTIBILITY (8.1.4) A wire carrying a 1 mA current at 100 MHz is parallel to and 1 cm from an infinite, perfectly conducting ground plane as shown in Fig. P8.1.4. Deter- mine the electric field 3 m above the ground plane. [0.877 mV/m] 3m 1 mA 1 m. FIGURE P8.1.4. 1 cm
- He-Ne lasers are often used in physics demonstrations. They produce light of wavelength 633 nm and a power of 0.500 mW spread over a cylindrical beam 1.50 mm in diameter (although these quantities can vary). Part A What is the intensity of this laser beam? Express your answer in watts per meter squared. ? I = 637 W/m? Submit Previous Answers Request Answer X Incorrect; Try Again; 3 attempts remaining Part B What is the maximum value of the electric field? Express your answer in volts per meter. Emax = 462 V/m Submit Previous Answers v Correct Part CX rays with a wavelength of 0.15 nm undergo first-order diffraction from a crystal at a 64° angle of incidence. Part A What is the angle of second-order diffraction? Express your answer using two significant figures. 02 = ΜΕ ΑΣΦ Submit Request Answer Provide Feedback ?What will be the energy associated with a red photon, if the wavelength of the red light is 650 nm? [Hint: Find the frequency of red light first to calculate the energy. Recall: c = .f] A. 650x10° J B. 6.5x10 J C. 4.6x1014 J D. 3.0x10-19 J E. 3.0x1019 J
