Which one is the correct statement about selenium?
Correct answer: C. Selenium is an insulator in the dark and becomes conductor when exposed to light
- A. Selenium is a good conductor
- B. Selenium is a good insulator
- C. Selenium is an insulator in the dark and becomes conductor when exposed to light
- D. Selenium is an conductor in the dark and becomes insulator when exposed to light
Explanation
As selenium(Se) element number is 34 having 2 ½ spins are vacant. So, it mostly acts as photocells which take the energy from the sun as solar energy as charge. Obviously, we can say it acts as conductor in light conditions and insulator in dark conditions.
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