GK Question

science hard true_false

True or False: Quantum dots exhibit size-dependent optical properties due to quantum confinement.

  1. True
  2. False

Answer: True

Quantum dots (semiconductor nanocrystals) emit different colors based on size: smaller dots emit blue, larger emit red. Used in displays, bioimaging, solar cells. [[NCERT Physics Class 12, DST Reports]]

Topic Physics - Nanotechnology
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