Echo is a ___________ of sound?

Related Mcqs:

1. The echo (reflected sounD. will be distinctly heard only at ordinary temperatures if the distance of the reflecting surfaces from the source of sound is at least ________?

   A. 1120 ft B. 120 ft C. 56 ft D. 100 ft E. None of these...

2. Name the branch of science which deals with the study of sound and sound waves?

   A. Aeronautics B. Acoustics C. Aerostatics D. Aetiology Submitted by: ABDUL HAYEE...

3. Microphone converts sound energy into ___________?

   A. Microwaves B. Electrical signals C. Optical Signals D. Heat energy Submitted by: Fahad Iqbal...

4. Sound of frequency below 20 Hz is:___________?

   A. Audiosonic B. Infrasonic C. Ultrasonic D. Supersonic Submitted by: Fahad Mehsud...

5. Which from the following is true for “Sound”?

   A. Sound cannot travel through a vacuum B. Sound cannot travel through gases C. Sound cannot travel through liquids D. Sound cannot travel through solids...

6. The cracking sound heard when dry hair is combed with a hard rubber comb is due to_________?

   A. The hair barging against the charged comb B. Small electric sparks C. The rubbing of the comb with the hair D. None of the above...

7. The approximate intensity level of the sound which can cause damage to the ear drum is?

   A. 20 dB B. 60 dB C. 100 dB D. 160 dB...

8. A loudspeaker changes _________ energy into sound energy.

   A. Chemical B. Electrical C. Light D. Kinetic Submitted by: Danish Balani...

9. Which of the following is used for hearing the sound of heart and lungs?

   A. Steroscope B. Stethoscope C. Oscillator D. Oncolator Submitted by: Farhan Rana...

10. Which animal can create the loudest sound among any living creature?

    A. Donkey B. Monkey C. Humpback whales D. None of these Submitted by: Kamlesh Kumar...