P-waves is a term associated with__________? - PakMcqs

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1. “Ratoons” is associated with__________?

   A. Sugarcane B. Wheat C. Rice D. Desert Submitted by: Sharafuddin...

2. Hen and chicken disorder is associated with__________ ?

   A. Mango B. Grapes C. Tomato D. Guava Submitted by: Shahbaz Jiskani...

3. Sound waves are _________ waves.

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

4. 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...

5. Ultrasonic waves are those sound waves having frequency __________?

   A. between 20 hertz and 1000 hertz B. between 1000 hertz and 20000 hertz C. less than 20 hertz D. more than 20 kilohertz Submitted by: Habib Baloch...

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. The principle used in radar is the same as that of Sonar. In radar we use radio waves ; whereas in sonar we use ?

   A. red waves B. Infrared waves C. Ultrasonic D. super sonic E. None of these...

8. In general, the most destructive earthquake waves are the __________ ?

   A. P waves B. S waves C. Surface waves D. All of the above Submitted by: Rashid Mehmood...

9. Which waves are used in sonography?

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

10. 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...