Download App

Sound — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceSound1 Mark
Question
Define decibel and on what factor does it depend?
✓

Answer

Loudness of the sound is measured in decible and ac loudness depends on amplitude it also depends on amplitude of the sound.

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 "Do as directed; [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

Classify the following crops as Rabi and Kharif: Paddy, Wheat, black gram, cotton, gram and peas.
→
In the following case, net force acting is zero? Also, identify the direction of force when. A car drives around a circular race track at a constant speed.
→
Give one example each of kharif and rabi crops.
→
Write down two principles of treatment.
→
What name is given to the number $6.022 \times 10^{23}?$
→
A mug full of water appears light as long as it is under water in the bucket than when it is outside water. Why?
→
What is the reserve food of algae.
→
Give example of cow breed which provides draught animals.
→
An element $X$ forms $X_2(CO_3)^3$​​​​​​​ type compound. What is the formula of its phosphate and chloride?
→
Give the usual mane of the following: Heat required to change the state of a substance without changing the temperature.
→