Question

Among the following the method of finding specific heat of a body is [ ]

a) method of mixtures b) Newton’s law of cooling

c) Electrical method d) All the above

2. When a substances takes in two equal masses but at different temperatues, are mixed, the result-

ant temperature will be [ ]

a) Must be equal to the higher temperature

b) May be greater than the higher temperature

c) May be greater than the lower temperature

d) May be lesser than the lower temperature

3. Principle of calorimetry states that [ ]

a) Qlost < Qgain b) Qlost > Qgain c) Qlost = Qgain d) None of these

4. Principle of calorimetry does not work when [ ]

a) No heat is exchanged with surrounding b) Some heat is exchanged with surrounding

c) More heat is exchanged with surrounding d) Any heat is exchanged with surrounding

5. 100 g of water at 30° is mixed with 50 g of water at 60°C. The resultant temperature is

a) 4°C b) 400°C c) 40°C d) 50°C [ ]

6. The instrument used to find specific heat by method of mixture is [ ]

a) Calorimeter b) Thermometer c) Heat meter d) Temperature meter

7. When objects at different temperatures are brought in contact, heat is exchanged between

a) Only the objects b) The objects and with calorimeter [ ]

c) The objects and with thermometer d) None of these

8. The total heat given by the hot objects equals the partial heat received by the cold object this is

a) Principle of calorimetry b) Principle of thermometry

c) Principle of method of mixtures d) None of these

9. Two bodies at different temperatures are mixed in a calorimeter. Then [ ]

a) The resultant temperature may be equal to the lower temperature

b) The resultant temperature is equal to the sum of the two temperatures

c) Total internal energy of two bodies not constant

d) both a and c

10. The principle of calorimetry represents the law of conservation of [ ]

a) mass b) heat energy c) momentum d) temperature​

Answer 1

Answer:

option(c) is the right

Explanation:

2.(c)