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  9. Q100

JKPSC KAS 2024 · Question 100 of 100

Which of the following materials is widely used to make quantum dots for biological applications?

Science & Technology

  1. ASilicon
  2. BCadmium selenideCorrect
  3. CGallium arsenide
  4. DGermanium

Answer: B. Cadmium selenide

Explanation

Quantum dots (QDs) are tiny semiconductor nanocrystals with unique optical and electronic properties. Their size and composition determine the color of light they emit when excited by a light source.

Source: JKPSC KAS Prelims 2024 GS via prepp.in

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