search
arrow-left Previous
Next arrow-right
Q: Which of the following is the more thermal insulation in the group?
  • A. Rubber, glass, plastic, cotton, copper
  • B. Plastic, ebonite, paper, cotton, bakelite, dry air, rubber
  • C. Silver, copper, gold, iron
  • D. Bakelite, dry air, paper ebonite, aluminium
Correct Answer: Option B - Thermal insulation is the reduction of heat transfer between objects, in thermal contact or range of reductive influence. Plastic, ebonite, paper, cotton, bakelite, dry air and rubber are the most heat resistant.
B. Thermal insulation is the reduction of heat transfer between objects, in thermal contact or range of reductive influence. Plastic, ebonite, paper, cotton, bakelite, dry air and rubber are the most heat resistant.

Explanations:

Thermal insulation is the reduction of heat transfer between objects, in thermal contact or range of reductive influence. Plastic, ebonite, paper, cotton, bakelite, dry air and rubber are the most heat resistant.