Two in-phase antennas, surrounded by air, act as point sources for microwaves wi

Question

Two in-phase antennas, surrounded by air, act as point sources for microwaves with a wavelength of 4.0 cm. They are positioned on the x axis at x = plusminus 3.0 cm. You place a detecting antenna at point P, which is at (x = + 3.0 cm, y = -8.0 cm). Which of the following is true? (a) The interference at this point is maximum constructive. (b) The interference at this point is maximum destructive. (c) The interference at this point is exactly halfway between maximum constructive and maximum destructive. (d) None of the above. After completing a calculation, you find d_s = +5.0 cm and d_i = -2.0 cm. From this, you can tell that the image is (a) real and upright (b) real and inverted (c) virtual and upright (d) virtual and inverted An unpolarized beam of light with an intensity of 992 W/m^2 passes through two polarizing filters. The first has its axis at 56.9 degree counterclockwise from horizontal. The second has its axis at 25.8 degree counterclockwise from horizontal. What is the intensity after passing through both polarizers? (a) 16.0 W/m^2 (b) 131 W/m^2 (c) 182 W/m^2 (d) 240 W/m^3 (e) 364 W/m^2 (f) 496 W/m^2 The index of refection of a material depends on the wavelength of light. As a result, (a) images formed by mirrors are degraded by spherical aberration. (b) images formed by mirrors are degraded by chromatic aberration. (c) images formed by mirrors are degraded by diffraction. (d) images formed by lenses are degraded by spherical aberration. (e) images formed by lenses are degraded by chromatic aberration. (0 images formed by lenses are degraded by diffraction.

Explanation / Answer

the first case has the otion none of the above to be incorrect as the angle is 0 degrees and due to thie interference doesnt take place

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.