T2 G11 Quiz 1 Reflection And Refraction

10 Questions
T2 G11 Quiz 1 Reflection And Refraction
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Questions and Answers
  • 1. 
    A girl looks into a bathroom mirror to brush her hair. The figure shows what she sees in the mirror.In which hand is she holding the brush? 
    • A. 

      Right hand

    • B. 

      Left hand

  • 2. 
    What causes refraction when light travels from air into glass?
    • A. 

      The amplitude of the light waves changes.

    • B. 

      The colour of the light changes.

    • C. 

      The frequency of the light waves changes.

    • D. 

      The speed of the light changes.

  • 3. 
    The diagram shows a ray of light entering a block of glass.Which numbered angles are the angles of incidence and of refraction?
    • A. 

      Incidence:1; refraction: 3

    • B. 

      Incidence:1; refraction: 4

    • C. 

      Incidence:2; refraction: 3

    • D. 

      Incidence:2; refraction: 4

  • 4. 
    Which diagram correctly shows a ray of light passing through a rectangular glass block?
    • A. 

      A

    • B. 

      B

    • C. 

      C

    • D. 

      D

  • 5. 
    Light from the Sun passes through a prism and a spectrum is produced on a screen.A thermometer placed at P shows a large temperature rise.Which type of radiation causes this?
    • A. 

      Infra-red

    • B. 

      Microwave

    • C. 

      Ultra-violet

    • D. 

      Visible light

  • 6. 
    The diagram shows a ray of light incident on the edge of a piece of glass. The angle i is biggerthan the critical angle.Which arrow correctly shows the direction of the ray after it leaves the edge of the glass? 
    • A. 

      A

    • B. 

      B

    • C. 

      C

    • D. 

      D

  • 7. 
    A man sees a stone at the bottom of a pool of water.Which path could be taken by light from the stone to the man?
    • A. 

      A

    • B. 

      B

    • C. 

      C

    • D. 

      D

  • 8. 
    A ray of light passes from air into a block of glass with index of refraction of 1.5. The angle of incidence is 30 degrees.Calculate the angle of refraction,
    • A. 

      30

    • B. 

      19.5

    • C. 

      0.05

    • D. 

      1

  • 9. 
    The speed of light in air is almost 3x108 m/s. In one piece of glass, light slows down to 2x108 m/s. What is the index of refraction for the glass?
    • A. 

      6

    • B. 

      0.67

    • C. 

      1.5

    • D. 

      5

  • 10. 
    In an optics lesson, a Physics student traces the paths of three rays of light near the boundarybetween medium A and air. The student uses a protractor to measure the various angles.State the critical angle of medium A
    • A. 

      53

    • B. 

      90

    • C. 

      133

    • D. 

      43