Question

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Multiple Choice Questions:
Select the correct option
1. An iron ball at 30°C is dropped in a beaker containing water at 40°C. The heat will
(a) flow from iron ball to water.
(b) not flow from iron ball to water or from water to iron ball.
(c) flow from water to iron ball.
(d) increase the temperature of both.
2. Stainless steel pans are usually provided with copper bottoms. The reasons for this could be that:
(a) copper bottom makes the pan more durable. (b) such pans appear beautiful.
(c) copper is a better conductor of heat than the stainless steel.
(d) copper is easier to clean than stainless steel.
3. One litre of water at 20°C is mixed with one litre of water at 40°C. The temperature of the mixture will be:
(a) 80°C
(b) more than 40°C but less than 70°C
(c) 20°C
(d) between 20°C and 40°C
4. A wooden spoon is dipped in a cup of ice-cream. Its other end :
(a) becomes cold by the process of radiation.
(b) becomes cold by the process of convection.
(c) becomes cold by the process of conduction
(d) does not become cold.
S. Cooking utensils are made from :
(a) good conductors of heat
(b) bad conductors of heat
(c) insulator
(d) both good and bad conductors of heat
HEAT A-47​

Answer 1

Explanation:

1. b

2. a

3. b

4. b

5. a

I think it helps you a lot ✌️❤️❤️❤️❤️❤️❤️❤️❤️❤️

Answer 2

1. b

2. a

3. b

4. b

5. a

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