Download App

Sound — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceSound3 Marks
Question
Distinguish between loudness and intensity of sound.
✓

Answer

The loudness depends on energy per unit area of the wave and on the response of the ear but intensity depends only on the energy per unit area of the wave and is independent of the response of the ear.

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 "Que-Ans (Each of 3 Mark )" from Sound→Sound — all question types→Science STD 9 question papers→Gujarat Board STD 9 question papers→Gujarat Board question paper generator→

Similar questions

Calculate the average density of the earth in terms of g, G and R.
→

Write four general characters of Thallophyta.

→
Why does the skin of your finger shrink when you wash clothes for a long time?
→

What are differences between the following:

Cartilaginous fishes and bony fishes.

→
Classify the following into osmosis/ diffusion:
  1. Swelling up of a raisin on keeping in water.
  2. Spreading of virus on sneezing.
  3. Earthworm dying on coming in contact with common salt.
  4. Shrinking of grapes kept in thick sugar syrup.
  5. Preserving pickles in salt.
  6. Spreading of smell of cake being baked through out the house.
  7. Aquatic animals using oxygen dissolved in water during respiration.
→
Explain various effects of weeds on crop plants.
→
Briefly describe the structure and functions of cell wall.
→

Define the following terms:

  1. Cell inclusions.
  2. Cytosol.
  3. Protoplasm.
  4. Nucleoplasm.
→
A piece of chalk can be broken into small particles on hammering, but it is not possible to break a piece of iron in the same fashion. Why?
→
What are the various types of cells of connective tissue?
→