T3 - Light English Medium Free Online Test 1 Mark Questions 2020-2021

7th Standard

    Reg.No. :
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Science

Time : 00:10:00 Hrs
Total Marks : 10

    Part A

    10 x 1 = 10
  1. Light that hits a mirror gets_______

    (a)

    Transmitted

    (b)

    Reflected

    (c)

    Absorbed

    (d)

    Refracted

  2. _____Surface reflects the light well.

    (a)

    water

    (b)

    compact disc

    (c)

    mirror

    (d)

    stone

  3. Light is a form of________

    (a)

    matter

    (b)

    energy

    (c)

    medium

    (d)

    particle

  4. You can see your image in polishedfloors, 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

  5. Choose the translucent substance from the following

    (a)

    glass

    (b)

    wood

    (c)

    water

    (d)

    Clouds

  6. Reflection occurs , when the light

    (a)

    about to reach a surface

    (b)

    approaches a surface

    (c)

    passes through a surface

    (d)

    None of these

  7. Which of the following is the best reflector of light?

    (a)

    plastic plate

    (b)

    plane mirror

    (c)

    wall

    (d)

    paper

  8. 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

  9. The image formed by a pinhole camera is inverted because,

    (a)

    light travels in straight lines

    (b)

    light rays become laterally inverted as they pass through a pinhole camera

    (c)

    light rays pass through the pinhole

    (d)

    light rays get reflected

  10. Which of the following facts explain how shadows are formed?
    a. Light travels in straight lines
    b. Opaque bodies do not allow light to pass through them
    c. Reflection occurs at a smooth surfaces like mirrors
    d. Lateral inversion happens

    (a)

    both A and B

    (b)

    both A and D

    (c)

    both B and C

    (d)

    only A

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