Night vision is possible with the help of ___________?

Related Mcqs:

1. Which types of waves are used in a night vision apparatus ?

   A. Radio Waves
   B. Micro Waves
   C. Infrared Waves
   D. Magnetic waves

   Submitted by: Haziq

2. Which one of the following sets of color combinations is added in color vision in TV’?

   A. Red, green and blue
   B. Orange, back and violet
   C. White. red and yellow
   D. Yellow, green and blue

3. Persistance of vision is the principle behind?

   A. Camera
   B. Spectroscope
   C. Cinema
   D. Periscope

   Submitted by: Malik Asghar Hussain

4. At night, Plants intake __________ and release __________?

   A. Oxygen – Carbon dioxide
   B. Carbon dioxide – Oxygen
   C. Oxygen – Carbon monoxide
   D. None of theseCarbon monoxide – Oxygen

5. In night, when photosynthesis is stopped, plants__________?

   A. take in Carbon Dioxide
   B. give off Oxygen
   C. give off Carbon Dioxide
   D. None of these

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

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

   Submitted by: Mansoor Ul Haque

7. Permissible noise level at Residential area during night time is:

   A. 45 dB 
   B. 55 dB
   C. 75 dB
   D. 80 dB

   Submitted by: Malik Asghar Hussain

8. What is the date when day and night are equal?

   A. March 21 and December 24
   B. January 14 and September 23
   C. March 20 and September 23
   D. January 14 and June 22

   Submitted by: Mansoor Ahmed Suhag

9. Day and night are the results of__________?

   A. Earth rotation around its axis
   B. Earth revolution
   C. Earth rotation accompanied with its revolution.
   D. None of these

   Submitted by: Muhammad Arshad Anwer

10. Which planet looks reddish in the night sky ?

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

    Submitted by: Muhammad Umar Abbas