Stars in the sky appear to twinkle due to _________?

Related Mcqs:

1. The blue colour of clear sky is due to_______________?

   A. Reflection of light
   B. Refraction of light
   C. Diffraction of light
   D. Dispersion of light

2. The blueness of the sky is mainly due to _____________?

   A. The scattering of sunlight by air molecules
   B. The presence of water vapor
   C. Absorption of blue light by the air
   D. Emission of blue light by the atmosphere

   Submitted by: Mansoor Ul Haque

3. An astronaut sees the colour of the sky as: _________?

   A. Blue
   B. White
   C. Red
   D. Black

   Submitted by: Abid Hussain

4. The most splendid and the most magnificent constellation on the sky is?

   A. Orion
   B. Columbia
   C. Canis Major
   D. Taurus
   E. None of these

5. The sky appears blue because the earth’s atmosphere __________?

   A. Scatters blue light
   B. Reflects blue light
   C. Transmits blue light
   D. Has actual blue cover

6. Particle clouds from where stars are formed are known as____________?

   A. Stellar nurseries
   B. Star clouds
   C. Event horizons
   D. Singularities

   Submitted by: Mansoor Ul Haque

7. What are the names of the two stars in the Big Dipper used to locate Polaris?

   A. The North Seekers
   B. The Pointer Stars
   C. The Pointer Sisters
   D. None of these

   Submitted by: Mansoor Ul Haque

8. Which one is the brightest star in the night sky?

   A. Betelgeuse
   B. Sirius
   C. Rigel
   D. Polaris

   Submitted by: Mansoor Ul Haque

9. The light of distant stars is affected by __________ ?

   A. The earth’s atmosphere
   B. Interstellar dust
   C. both A and B
   D. None of these

   Submitted by: Rashid Mehmood

10. Which planet looks reddish in the night sky ?

    A. Jupiter
    B. Saturn
    C. Mars
    D. MercurY

    Submitted by: Muhammad Umar Abbas