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| Q. |
Silicon is used in which of the following? |
| A. | Semiconductors |
| B. | solar energy devices |
| C. | transistors |
| D. | All of these |
| Answer» D. All of these | |
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Explanation: Silicon is a chemical element (its symbol in chemical formula expressions is "Si") that is present in sand and glass and which is the best known semiconductor material in electronic components. Its atomic number is 14. |
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