Question
Explain the term frequency of a sound wave.
✓
Answer
Sound travels in the form of waves. A wave consists of cycles of alternate compression and rarefaction. The number of cycles produced in the air (or any other medium) per second is called the frequency of the sound wave. It is expressed in hertz (Hz). 1 hertz = 1 cycle per second or 1 vibration per second or 1 oscillation per second.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
State any three characteristics of gases.
What happens when you shake a wet piece of cloth? Explain your observation.
Classify the following changes into physical and chemical change. Ripening of mango, melting of ice, boiling of water, dissolution of salt in water, Ripening of banana, fragrance on ripening fruit, darkening of a cut potato, bursting of an inflated balloon, sound of bursting fire cracker, foul smell from a portion of spoiled food.
Carbon dioxide reacts with sodium hydroxide.(Explain With Balanced Equation)
State Archimedes’ principle.
Use Whittaker method to classify bacteria, protozoa, fungi, algae, prokaryotic, eukaryotic, microbes.
Classify the following into living and non-living factors. Sunlight, Sunflower, Elephant, Lotus, Algae, Stone, Grass, Water, Ant, Soil, Cat, Fern, Air, Lion.
A metal block has thmensions $10 cm \times 5 cm \times 2 cm$ and the density of the metal is $8 \times 10^3 kg / m ^3$. It is kept on a table with the face $10 cm \times 5 cm$ in contact with the table. Find the force and pressure exerted by the block on the table. $\left(g=9.8 m / s ^2\right)$
→Enlist the names and composition of the medicines present at your home.
Give two examples to show that air exerts equal pressure in all directions.