Question
Explain why, a ringing bell suspended in a vacuum chamber cannot be heard outside.
✓
Answer
A ringing bell suspended in a vacuum chamber cannot be heard outside because sound cannot travel through vacuum as it has no molecules which can vibrate and carry sound waves.
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
If one mole of carbon atoms weighs 12grams, what is the mass (in grams) of 1 atom of carbon?
Write down four main characters of chordates.
Give two factors on which acceleration depends.
The mass number of an element is 18. It contains 7 electrons. What is the number of protons and neutrons in it?
Explain the following giving examples.
Pure substance.
Pure substance.
A car is being driven by a force of 2.5 × 1010N. Travelling at a constant speed of 5m/s, it takes 2 minutes to reach a certain place. Calculate the work done.
An empty plastic bottle floats, while a plastic bottle filled with sand sinks in water. Why?
Why does a gas fill a vessel completely?
- Compare the properties of solids, liquids and gases in tabular form.
- Give two reasons for saying that wood is a solid.
During class, the students resemble molecules in a solid (because they are very close to one another)
While going from one classroom to another the students resemble molecules in a liquid (because they are a little more father apart from one another)
What is the chemical composition of cell wall in plants and fungi respectively?