Question

CHOOSE THE CORRECT OPTION.

1. Convection cannot take place in solids because_____.
a. actual movement of particles is not possible
b. solids possess free electrons
c. atoms are loosely packed
d. they are bad conductors

2. Which of the following is an example of radiation?
a. Heat from an electric bulb
b. Heat from a bonfire
c. Heat from red hot iron
d. All of these

3. The sides of the double walls of a thermos flask facing each other are made shiny because_______.
a. shiny surfaces absorb more heat
b. shiny surfaces are bad radiators of heat
c. shiny surfaces are bad conductors
d. none of these

ANSWER FAST........
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Answer 1

Answer:

1 ka option (B) .

2ka option (c).

3ka option (a)

Answer 2

Answer:

1. (B)

2. (C)

3.(A).

Explanation:

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