Question

the regular vibrations of which of the following electrically driven crystals are used for measuring time very accurately option A Calcite crystals option B Quadric crystals C chrome crystals Quartz crystals​

Answer 1

Answer:

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Explanation:

d)Quartz crystals

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Answer 2

The regular vibration of the quartz crystal are used for measuring time very accurately.

Option d

Explanation:

• Quartz crystal have molecular form which upon receiving the sound vibration oscillate in a certain manner. This can easily be studied under a crystal study microscope.
• They help in understanding the frequency of the sound wave in addition to the time period and also the amplitude of the oscillation. Hence it gives us an idea about the shrillness and the loudness of an oscillation

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