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Physics 9 Chapter 9 - Transfer of Heat - 15
1.
Which of the following surface in Leslie’s cube is bad absorber of heat?
a) A white surface
b) A dull black surface
c) A shining silvered surface
d) A coloured surface
2.
Which of the following is a good radiator of heat?
a) Green coloured surface
b) A white surface
c) A shining silvered surface
d) A dull black surface
3.
A white surface is ........................ absorber of heat?
a) Bad
b) Best
c) Good
d) Worst
4.
Which of the following surface in Leslie’s cube is good reflector of heat?
a) A dull black surface
b) A coloured surface
c) A white surface
d) A shining silvered surface
5.
A white surface is ........................ reflector of heat?
a) Good
b) Best
c) Bad
d) Worst
6.
Which of the following surface in Leslie’s cube is worst emitter of heat?
a) A white surface
b) A coloured surface
c) A shining silvered surface
d) A dull black surface
7.
A shining silvered surface is ........................ emitter of heat?
a) Worst
b) Good
c) Best
d) Bad
8.
Which of the following surface in Leslie’s cube is worst absorber of heat?
a) A shining silvered surface
b) A white surface
c) A dull black surface
d) A coloured surface
9.
Which of the following surface in Leslie’s cube is best reflector of heat?
a) A coloured surface
b) A dull black surface
c) A shining silvered surface
d) A white surface
10.
A shining silvered surface is ........................ absorber of heat?
a) Best
b) Good
c) Worst
d) Bad
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