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Mirrors and Lenses

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  • Concave Mirror: focal length of 5 cm, object is located at 10 cm. Where is the image located?
    20 cm
    No image
    5 cm
    10 cm
  • Converging lens: focal length of 10 cm, object is located at 9 cm. Where is the image located?
    90 cm
    No image
    -.01 cm
    -90 cm
  • Converging lens: focal length of 10 cm, object is located at 10 cm. Where is the image located?
    10 cm
    No image
    -10 cm
    0 cm
  • The point where all incident parallel rays converge for a concave mirror is called
    Object distance
    Focal point
    Center of curvature
    Image distance
  • Which of the following is NOT the name of one of Mr. V's cats?
    Orion
    Ivy
    Gracie
    Janie
  • Light travels from air to glass.  Here, air or glass is called a ____.
    Boundary
    Medium
    Area
    Volume
  • Diverging lens: focal length of 6 cm, object is located at  4 cm. Where is the image located?
    -2.4 cm
    -12 cm
    No image
    12 cm
  • A concave mirror or a converging lens always produces what type of image?
    None of the above.
    Virtual.
    Real.
    Real or virtual depending on where the object is located.
  • A convex mirror or a diverging lens always produces what type of image?
    None of the above.
    Real or virtual depending on where the object is located.
    Real.
    Virtual.
  • A light ray strikes a flat mirror at an angle of 50o from the normal, the reflected ray will be
    50<sup>o</sup>&nbsp;from the normal
    40<sup>o</sup>&nbsp;from the mirrors surface
    40<sup>o</sup>&nbsp;from the normal line
    50<sup>o</sup>&nbsp;from the mirror's surface
  • Convex Mirror: focal length of 4 cm, object is located at 7 cm. Where is the image located?
    2.5 cm
    -5 cm
    No image
    -2.5 cm
  • Converging lens: focal length of 10 cm, object is located at 17 cm. Where is the image located?
    24 m
    .04 cm
    20 cm
    24 cm
  • Where reflected light rays intersect a _____ image is formed.
    Virtual
    Real
    Upright
    Diffraction pattern
  • An image that appears behind a mirror is&nbsp;
    Real
    Virtual
    Curved
    Projected
  • The focal length for a diverging lens or a convex mirror is always
    Larger than one.
    Smaller than one.
    Positive.
    Negative.
  • Light travels from air to glass, and changes angle with respect to the normal. &nbsp;This is called
    Transmission
    Refraction
    Reflection
    Conduction
  • A light wave travels at 3x108&nbsp;m/s with a frequency of 5x1012 Hz. &nbsp;What is the wavelength?
    0.0000000006 m
    6x10<sup>-5</sup>&nbsp;m
    6x10<sup>5</sup>&nbsp;m
    6x10<sup>-5 </sup>cm
  • You are 1 light year from a star, and you move to 2 light years away. &nbsp;The new intensity is
    One fourth as bright
    Half as bright
    Twice as bright
    Four times as bright
  • What phenomenon is responsible for a straight drinking straw looking bent in a glass of water?
    Reflection
    Refraction
    Diffraction
    Interference
  • The farther light is from a source the ____ the intensity becomes.
    Less
    Condensed
    Radical
    Greater