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. The instrument which i specially design for recording earth quake wave is called seismograph which measure earth quake waves on a ____________?

   A. Diatonic scale B. Fahrenheit Scale C. Richter scale D. Celsius Scale E. None of these...

7. 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...

8. Which waves are used in sonography?

   A. Ultrasonic waves B. Electromagnetic Waves C. Fundamentals of waves D. Transverse wave Submitted by: Rashid Mehmood...

9. When sound waves travel from air to water which of the following quantities remains unchanged?

   A. Speed B. Frequency C. Intensity D. Wavelength Submitted by: Rashid Mehmood...

10. The waves which are used for line of sight (LOS) communication are called:

    A. Space waves B. Cable waves C. Antenna waves D. None of these Submitted by: Areesha Khan...