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By Everyday Science Mcqs 4 Comments

Which of the following statements is true when we see ‘rainbow’ ?

A. We face sun and raindrops
B. The Sun remains behind us and we face raindrops
C. In light rainfall, we face Sun
D. The sky remains clear and the sun is at lower position in the sky

Submitted by: Abid Hussain

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We see rainbows because of the geometry of raindrops. When the sun shines from behind us into the rain, incident rays of light enter the drop and are refracted inwards. They are reflected from the back surface of the raindrop, and refracted again as they exit the raindrop and return to our eyes. A rainbow is an optical and meteorological phenomenon that is caused by reflection of light in water droplets in the Earth’s atmosphere, resulting in a spectrum of light appearing in the sky.

Related Mcqs:

  1. Which of the following phenomena of light are involved in the formation of a rainbow?

    A. Refraction
    B. Dispersion
    C. Total internal reflection
    D. All of the above

    Submitted by: Safdar Abbas

  2. Rainbow is seen after rain because of hanging molecules of water which act as __________?

    A. Lens
    B. Prism
    C. Mirror
    D. Slabs

    Submitted by: Abid Hussain

  3. At what angle above the horizon must the sun be to create a rainbow?

    A. 90 degrees
    B. 60 degrees
    C. 40 degrees
    D. 65 degrees

    Submitted by: Waseem Akram Bozdar

  4. Central Color of Rainbow is__________?

    A. Blue
    B. Green
    C. Red
    D. Indigo

    Submitted by: Muhammad Jehanzeb

  5. Rain drops fall from great height Which among the following statements is true regarding it?

    A. they fall with that ultimate velocity, which are different for different droplets
    B. they fall with same ultimate velocity
    C. their velocity increases and they fall with different velocity on the earth
    D. their velocity increases and they fall with same velocity on the earth

    Submitted by: Abid Hussain

  6. Which of the statements to about the Troposphere is not true?

    A. It contains 85-90% of the atmosphere’s mass
    B. It contains nearly all the water and oxygen of the atmosphere
    C. It is the zone which exhibits changes in condition of weather
    D. It is about 350 km thick

    Submitted by: Mansoor Ul Haque

  7. All of the following statements are incorrect except:

    A. Precision and accuracy should go side by side in a scientific work
    B. Scientific work must be precise, accuracy is not essential
    C. Scientific work must be accurate, precision is not essential
    D. Calculations must be made before any experiment

    Submitted by: Mansoor Ul Haque

  8. “Rancidity produced in butter can be decreased by adding quinoline to the butter”. This statements shows that _______________?

    A. Nothing is impossible
    B. Quinoline is an inhibitor
    C. Quinoline is a catalyst
    D. Quinoline is an activator

    Submitted by: Mansoor Ul Haque

  9. A cup of milk is placed in a microwave oven. Tell which statements is false. (1) Milk will be heated up only. (2) Cup will remain cool. (3) Both cup and mild will get hot ?

    A. None
    B. 1
    C. 2
    D. 3

  10. Which one of the following is true?

    A. The moon has both atmosphere and magnetic field
    B. The moon has no atmosphere or magnetic field
    C. The moon has atmosphere but no magnetic field
    D. The moon has magnetic field but no atmosphere

    Submitted by: Muhammad Abdullah

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