Physics
Grade-9
Easy
Question
When a compressive force is applied to a quartz crystal then:
- Positive charges are induced
- Negative charges are induced
- No charges are induced
- Both positive and negative charges are induced
Hint:
The compressive stress generates positive energy in a crystal.
The correct answer is: Positive charges are induced
When a compressive force is applied to a quartz cell, positive energy is induced in it.
- When physical stress is applied to an object, the force presses it inwards and makes the object compact. This is compressive stress.
- The compressive stress generates positive energy in a crystal.
- When a quartz crystal is applied to compressive stress positive energy is generated at one end of the crystal and negative energy is generated at the other end of the crystal.
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