PHYSICS MULTIPLE CHOICE QUESTIONS

PHYSICS QUESTIONS RELATED TO SOUND TOPIC

1. The device which uses ultrasound waves to measure the
distance of an object is
 a) radar b) scanner
 c) sonar d) spectro scope

2. A normal human car can lear sound waves of frequencies
 a) less that 20HZ b) greater than 20,000HZ
 c) in the range 20 HZ-2000HZ
 d) greater than 400,000HZ

3. Which of these animals can hear ultrasound?
a. birds b. man
c) bat d) ant


4. A sonar uses
 a) Infrasonic waves b. audible waves
 c) ultrasound waves d. Radio waves

5. ECG stands for
 a. Electro cardio gram
 b. Echocardiogram
 c. electronic cardiograph
 d. Electro encephalogram