GRE Physics Domain 3: Optics and Wave Phenomena Welcome to your GRE Physics Domain 3: Optics and Wave Phenomena 1. GRE Physics: Optics and Wave Phenomena A thin converging lens has a focal length of 15 cm. An object is placed 10 cm from the lens. Where is the image formed? A. 30 cm on the same side as the object B. 30 cm on the opposite side of the lens C. At infinity D. No image is formed None 2. GRE Physics: Optics and Wave Phenomena Which phenomenon is not explained by the wave theory of light? A. Interference B. Diffraction C. Photoelectric effect D. Polarization None 3. GRE Physics: Optics and Wave Phenomena What happens to the speed of light as it enters a medium with a higher refractive index? A. It increases B. It decreases C. It remains constant D. It becomes zero None 4. GRE Physics: Optics and Wave Phenomena In a double-slit experiment, if the slit separation is halved and the wavelength of light used is doubled, what happens to the fringe spacing? A. It is halved B. It remains the same C. It is doubled D. It is quadrupled None 5. GRE Physics: Optics and Wave Phenomena What is the Brewster's angle for a medium with a refractive index of 1.5? A. \( \tan^{-1}(1/1.5) \) B. \( \tan^{-1}(1.5) \) C. \( \sin^{-1}(1/1.5) \) D. \( \cos^{-1}(1/1.5) \) None 6. GRE Physics: Optics and Wave Phenomena Which color of light has the shortest wavelength when passing through a prism? A. Red B. Green C. Blue D. Violet None 7. GRE Physics: Optics and Wave Phenomena A beam of unpolarized light is incident on a polarizer. What fraction of the light's intensity is transmitted through the polarizer? A. \( \frac{1}{4} \) B. \( \frac{1}{2} \) C. \( \frac{3}{4} \) D. \( 1 \) None 8. GRE Physics: Optics and Wave Phenomena In an optical fiber, light is confined within the core by the principle of: A. Refraction B. Diffraction C. Total internal reflection D. Scattering None 9. GRE Physics: Optics and Wave Phenomena A ray of light in air strikes a glass surface at an angle less than the critical angle. What happens to the ray? A. It is completely reflected B. It is completely transmitted C. It undergoes partial reflection and partial transmission D. It is absorbed by the glass None 10. GRE Physics: Optics and Wave Phenomena Which color of light has the shortest wavelength when passing through a prism? A. Red B. Green C. Blue D. Violet None 1 out of 10 Time is Up! Time's up
