Wave Optics

19 Questions

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Optics Quizzes & Trivia

Physics test on light


Questions and Answers
  • 1. 
    Only the wave theory of light offers an explanation for the ability of light to exhibit
    • A. 

      Interference

    • B. 

      Reflection

    • C. 

      Photoelectric emission

    • D. 

      Intensity of radiation

  • 2. 
    Which two characteristics of light can best be explained by the wave theory of light?     
    • A. 

      Relection and refraction

    • B. 

      Reflection and interference

    • C. 

      Refraction and diffraction

    • D. 

      Interference and diffraction

  • 3. 
    Which phenomenon can be observed for transverse waves only?
    • A. 

      Reflection

    • B. 

      Diffraction

    • C. 

      Polarization

    • D. 

      Refraction

  • 4. 
    Sources that produce waves with a constant phase relation are said to be
    • A. 

      Polarized

    • B. 

      Diffused

    • C. 

      Refracted

    • D. 

      Coherent

  • 5. 
    If all parts of a light beam have a constant phase relationship, with the same wavelength and frequency, the light beam is
    • A. 

      Monochromatic and coherent

    • B. 

      Mono and incoherent

    • C. 

      Polychromatic and coherent

    • D. 

      Poly and incoherent

  • 6. 
    The diffraction pattern produced by a double slit will show greatest separation of maxima when the color of the light source is
    • A. 

      Red

    • B. 

      Orange

    • C. 

      Blue

    • D. 

      Green

  • 7. 
    If the wavelength of the light is decreased, the width of the central maximum in the diffraction pattern will
    • A. 

      Decrease

    • B. 

      Increase

    • C. 

      Remain the same

  • 8. 
    • A. 

      Amplitude and frequency of the incident wave

    • B. 

      Wavelength and speed of the incident wave

    • C. 

      Wavelength of the incident wave and size of the opening

    • D. 

      Amplitude of the incicdent wave and the size of the opening

  • 9. 
    If the screen is moved closer to the slits, the distance between the central maximum and the first maximum will     
    • A. 

      Decrease

    • B. 

      Increase

    • C. 

      Remain the same

  • 10. 
    If the distance between the slits is decreased, the distance between the central max and the first max will
    • A. 

      Decrease

    • B. 

      Increase

    • C. 

      Remain the same

  • 11. 
    The photon model of light is more appropriate than the wave model in explaining
    • A. 

      Interference

    • B. 

      Refraction

    • C. 

      Polarization

    • D. 

      Photoelectric emission

  • 12. 
    Light demonstartes the characteristics of
    • A. 

      Particles only

    • B. 

      Waves only

    • C. 

      Both particles and waves

    • D. 

      Neither

  • 13. 
    Interference and diffraction can be explained by
    • A. 

      The wave theory only

    • B. 

      The particle theory only

    • C. 

      Neither

    • D. 

      Both

  • 14. 
    The color of visible light is determined by its
    • A. 

      Frequency

    • B. 

      Amplitude

    • C. 

      Intensity

    • D. 

      Speed

  • 15. 
    Increasing the amplitude of an electromagnetic radiation increases its
    • A. 

      Frequency

    • B. 

      Speed

    • C. 

      Intensity

    • D. 

      Period

  • 16. 
    Compared to the period of red light, the period of violet light is
    • A. 

      Less

    • B. 

      Greater

    • C. 

      Same

  • 17. 
    Compared to the period of a wave of red light, the period of a wave of blue light is
    • A. 

      Less

    • B. 

      Greater

    • C. 

      Same

  • 18. 
    Electrons oscillating with a frequency of 2.0X10 10 hertz produce electromagnetic waves. These waves would be classified as
    • A. 

      Infrared

    • B. 

      Visible

    • C. 

      Microwave

    • D. 

      X-ray

  • 19. 
    Which pair of terms best describes light waves traveling from the Sun to Earth?
    • A. 

      Electromagnetic and transverse

    • B. 

      Electromagnetic and longitudinal

    • C. 

      Mechanical and transverse

    • D. 

      Mechanical and longitudinal