When a ray of sunlight enters a dark room , its straight path become visible because of dust particles hanging in the air. It is because light is _________?

Related Mcqs:

1. When a person enters a dark room from bright light he is not able to see clearly for a little while because the?

   A. Eye is unable to adjust itself immediately
   B. Retina becomes insensitive momentarily
   C. Iris is unable to dilate the pupil immediately
   D. Distance between the lens and retina take time to adjust

2. As comets get close to the sun, they start to “melt” and release gas and dust. This gas and dust forms what?

   A. “coma” around the comet’s nucleus and a long tail that points away from the sun
   B. “coma” that points away from the sun and a long tail around the comet’s nucleus
   C. Only “coma” around the comet’s nucleus
   D. Only a long tail that points away from the sun

   Submitted by: Muhammad Abdullah

3. An optical instrument which is used measure the properties of visible light is called?

   A. Microscope
   B. Telescope
   C. Spectroscope
   D. Oscilloscope

   Submitted by: Hussain Ahmed

4. Chromosomes first become visible during which phases of mitosis:

   A. Prometaphase
   B. Telophase
   C. Prophase 
   D. Metaphase

   Submitted by: Sami Khan

5. A boy sitting in an open car moving with the constant speed throws a ball straight up into the air. The ball falls _________?

   A. behind him
   B. in front of him
   C. into his hand
   D. by his side

   Submitted by: Malik Asghar Hussain

6. Who said that light is made of corpuscles/particles?

   A. Maxwell
   B. Einstein
   B. Newton
   D. Huygein

   Submitted by: Munwar Ali Sohu

7. The sunlight can reach a depth of___________meters in the ocean

   A. 80
   B. 200
   C. 120
   D. None

8. Sunlight is a Great Source of ____________?

   A. vitamin C
   B. vitamin D
   C. vitamin E
   D. vitamin K

   Submitted by: Sara khan

9. Sunlight is composed of___________?

   A. Three colours
   B. six colours
   C. seven colours
   D. eight colours

   Submitted by: Mian Jamil Shah

10. Exposure to sunlight helps a person improve his health because ________?

    A. Resistance power increases
    B. The infrared light kills bacteria in the body
    C. The ultraviolet rays convert skin oil into Vitamin D
    D. The pigment cells in the skin get stimulated and produce a healthy tan

    Submitted by: Rashid Mehmood