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

Related Mcqs:

1. Night vision is possible with the help of ___________?

   A. Red light
   B. Violet light
   C. Infrared Rays
   D. Ultra violet Light
   E. None of these

2. Sound waves are _________ waves.

   A. Transverse
   B. Electromagnetic
   C. Longitudinal
   D. None of these

3. P Waves are also said to be __________ waves?

   A. Push-pull
   B. Side-side
   C. Up-down
   D. None of the above

   Submitted by: Rashid Mehmood

4. 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

5. Persistance of vision is the principle behind?

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

   Submitted by: Malik Asghar Hussain

6. Which layer of the atmosphere reflects radio waves back to the earth’s surface?

   A. Troposphere
   B. Stratosphere
   C. Ozone layer
   D. Ionosphere

   Submitted by: Aamir Hussain Laghari

7. Which of the following waves have smallest velocity in vacuum?

   A. Ultraviolet
   B. Sound
   C. Infra-Red
   D. Micro

   Submitted by: Malik Asghar Hussain

8. Which one of the following waves are used by the common TV remote control?

   A. Radio waves
   B. Lasers
   C. Infrared waves
   D. Ultrasonic waves

   Submitted by: Adeeb Hussain

9. Which among the following waves is used for communication by artificial satellites ?

   A. Micro waves
   B. Radio waves
   C. A. M.
   D. Infra-red waves

   Submitted by: Abid Hussain

10. Earthquake waves travel faster in __________?

    A. Water
    B. Flexibl rock
    C. Air
    D. Soil

    Submitted by: G.M Zuhrani