Download App

Sound — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceSound1 Mark
MCQ
Which one has higher frequency$?$
  • A
    Infrasonic sound
  • ✓
    Ultrasonic sound
  • C
    Audible sound
  • D
    All of the above have same frequency
✓

Answer

Correct option: B.
Ultrasonic sound

Audible sound has a frequency range of $20\ Hz$ to $20\ kHz.$
Infrasonic frequency is below audible range, i.e. below $20\ Hz.$
Ultrasonic frequency is above audible range, i.e. above $20\ KHz.$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q. [1 M]" from Sound→Sound — all question types→Science STD 9 question papers→Gujarat Board STD 9 question papers→Gujarat Board question paper generator→

Similar questions

Slope of a velocity – time graph gives:
→
Starting from rest objects 1 falls freely for 4 seconds and object 2 falls freely for 8 seconds.Compared to object 1, object 2 falls
→
During evaporation of liquid, $............$?
→
Name group of diseases that last only for short period of time:
→
The physical quantity which makes it easier to accelerate a small car than a large car is measured in the unit of:
→
The slope of displacement-time graph being negative implies
→
You pull your hands back while catching a fast moving cricket ball. Which law is used to explain it:
→
Mitochondria are the seat of:
→
Two objects of different masses falling freely near the surface of moon would:
→
The atomicities of ozone, sulphur, phosphorus and argon are respectively:
→