Q.1 Radiation
(A) does not require a material medium
(B) is the process of the transfer of heat in liquids
(C) is the process of the transfer of heat in which heat travels in one direction
(D) occurs in solids
Q.2 Which of the following statements is correct?
(A) Metals are bad conductors.
(B) Some metals conduct heat better than others.
(C) Heat can be conducted from one metal to another even if they are not in contact with each other.
(D) When two metal rods are placed in contact with each other. heat can flow from one to the other even if
they are at the same temperature.
Q.3 The capillary tube of a clinical thermometer has a kink
(A) to increase the expansion of mercury
(B) so that the level of mercury does not fall as soon as the thermometer is taken out of the mouth
(C) to use less mercury
(D) to help us see it better
Q.4 A polished. silvery surface is a :
(A) good absorber and good reflector of heat (B) good absorber and bad radiator of heat
(C) poor absorber and good reflector of heat (D) poor reflector and good radiator of heat
Answers
Answered by
2
Answer:
Q.1)C
Q.2)D
Q.3)B
Q.4)A
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Answered by
0
Answer:
radiation
convection
radiation
conduction
(2)X
yes
yes
X
(3) yes
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