MHT CET · Physics · Semiconductors
A solid reflects incident light and its electrical conductivity decreases with temperature. The binding in this solid is
- A ionic
- B covalent
- C metallic
- D molecular
Answer & Solution
Correct Answer
(C) metallic
Step-by-step Solution
Detailed explanation
Metals reflect incident light by the vibrations of free electrons under the influence of electric field of incident wave. The conductivity of metals decreases with increase of temperature due to increases in random motion of free electrons. The bonding is therefore metallic.
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