Tungsten Is Used In Electric Bulbs Because (A) It Is Metallic (B) It Is Sonorous (C) It Has High Density (D) It Has High Tensile Strength.

The correct answer is (D) It Has High Tensile Strength.

Tungsten (W) is the most commonly used material for light bulb filaments. This is because of its unique properties, such as:

  • Tungsten lowest vapour pressure
  • Tungsten has the highest melting point of -3695 K
  • Tungsten has the greatest tensile strength out of all the metals. 

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