7th Standard English Medium Science Subject T3 - Light Book Back 1 Mark Questions with Solution Part - I

7th Standard

    Reg.No. :
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Science

Time : 00:30:00 Hrs
Total Marks : 5
    5 x 1 = 5
  1. Light travels only in a _______ It is because of this property that ______ are formed.

    (a)

    curved line, shadows

    (b)

    straight line, shadows

    (c)

    straight line, reflection

    (d)

    curved line and then straight line, shadows

  2. _____Surface reflects the light well.

    (a)

    water

    (b)

    compact disc

    (c)

    mirror

    (d)

    stone

  3. You can see your image in polished floors, but not in wooden table because_______.

    (a)

    regular reflection takes place in wooden table and irregular reflection in polished floor

    (b)

    regular reflection takes place in polished floor and irregular reflection in wooden table

    (c)

    regular reflection takes place in both polished floor and wooden table

    (d)

    irregular reflection takes place in both polished floor and wooden table

  4. Reflection occurs , when the light ______.

    (a)

    about to reach a surface

    (b)

    approaches a surface

    (c)

    passes through a surface

    (d)

    None of these

  5. Sivarajan placed a meter stick in the playground at 7.00 am in the morning. How will the shadow of the stick at noon look in comparison to the one in the morning.

    (a)

    There will be no shadow

    (b)

    The shadow will be longer and on the opposite side as the sun

    (c)

    The shadow will be shorter and on the same side as the sun

    (d)

    The shadow will be shorter

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