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Subjects
Science CBSE
Class 7 New
The World of Metals and Non-metals
Textbook Based Questions
8.
Sonorous-II
Exercise condition:
3
m.
Briefly answer the following questions:
1.
What is mean by the term sonorous?
The property of materials to get scratched when strike over hard surface
The property of materials to be tensile when beaten with a hammer
The property of materials to produce a clear, ringing sound when strike over hard surface
The property of materials to expand when hit over hard surface
2.
Give two examples of sonorous property of metals useful in daily life
Cooking pan, school bell
Thermometer, musical instrument
Musical instrument, wires
Bells, musical instruments
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