Question

d. Aluminium
d. None of these
d. Oil
A. Multiple choice questions.
1. The conduction of heat does not take place in
Tron
a. Copper
blood
2. Heatrans trom the sun reach us through
Radiation
b. Convection
Conduction
3 A liquid which is a good conductor of heat is:
Water
b. Alcohol
c. Mercury
* During melting of ice, its temperature:
a Remains constant
b. Increases
c. Decreases
3. The loss or gain of heat is prevented in a thermos flask by
a. Radiation
b. Convection
c. Conduction
0-40 °C is the same as
b. -40 °F
c. +212 °F
Heat radiations can pass through
a. Vacuum
b. Air
d. None of these
d. All of these
d. - 100 °F
c. Transparent screen
d. All of these
Tivo silvered glass sheets placed parallel to each other without air in between and sealed from all
sides insulates transfer of heat by
Conduction
b. Convection
c. Radiation
d. All of these
tch the following:​

Answer 1

Answer:

Correct option is

D

Vacuum

A solid medium is required for conduction to take place. Since, vaccum does not have a medium, conduction does not take place.