Self Studies

Light Reflectio...

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  • Question 1
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    Refraction of light occurs when:

  • Question 2
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    A light ray travels at some angle (not head-on) from water in a rectangular aquarium, through the glass side, and out into the air. The indices of refraction for water, glass, and air are 1.33, about 1.6, and 1.0, respectively.
    Rank the materials in descending order according to the angles of refraction made by the light ray with the normal in each.

  • Question 3
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    Light moves from air into water. The light makes an angle of 47047^0 with the normal in the air. What angle will it make with the normal in the water?
    The index of refraction for air is 1.001.00.
    The index of refraction for water is 1.331.33.

  • Question 4
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    A student traces the path of a ray of light through a rectangular glass slab for the different values of angle of incidence. He observes all possible precautions at each step of the experiment. At the end of the experiment, on analyzing the measurements, which of the following conclusions is he likely to draw?

  • Question 5
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    An object is placed somewhere in front of concave mirror. The focal length of the mirror is 10.0cm10.0 cm. The image for this object CANNOT be formed in which of the following locations?

  • Question 6
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    Material 11 has an index of refraction of 1.151.15.
    Material 22 has an index of refraction of 2.302.30.
    If light passes from air into each of these materials at the same angle of incidence, how will the angle of refraction in material 11 compare to the angle of refraction in material 22?

  • Question 7
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    After tracing the path of rays of light through a glass slab for three different angles of incidence, a student measured the corresponding values angle of refraction r and angle of emergence e and recorded them in the table given below:

    S.No.i\angle ir\angle re\angle e
    I30o30^o20o20^o31o31^o
    II40o40^o25o25^o40o40^o
    III50o50^o31o31^o49o49^o
    The correct observations are:

  • Question 8
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    Above, a light ray is pictured entering a piece of glass from the air.
    Which diagram most accurately shows the path the light that passes through the glass will take?

  • Question 9
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    We want a mirror that will make an object look larger. What combination of image and object distances (from the mirror) will accomplish this?

  • Question 10
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    The image distance of an object placed 10 cm in front of a thin lens of focal length +5 cm is at :

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