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Physics 9 Chapter 9 - Transfer of Heat - 14
1.
Which of the following surface in Leslie’s cube is worst reflector of heat?
a) A dull black surface
b) A white surface
c) A shining silvered surface
d) A coloured surface
2.
A dull black surface is ........................ reflector of heat?
a) Bad
b) Worst
c) Good
d) Best
3.
Which of the following surface in Leslie’s cube is good emitter of heat?
a) A coloured surface
b) A shining silvered surface
c) A dull black surface
d) A white surface
4.
A coloured surface is ........................ emitter of heat?
a) Worst
b) Good
c) Bad
d) Best
5.
Which of the following surface in Leslie’s cube is good absorber of heat?
a) A coloured surface
b) A dull black surface
c) A white surface
d) A shining silvered surface
6.
A coloured surface is ........................ absorber of heat?
a) Bad
b) Worst
c) Good
d) Best
7.
Which of the following surface in Leslie’s cube is bad reflector of heat?
a) A coloured surface
b) A shining silvered surface
c) A dull black surface
d) A white surface
8.
A coloured surface is ........................ reflector of heat?
a) Best
b) Worst
c) Bad
d) Good
9.
Which of the following surface in Leslie’s cube is bad emitter of heat?
a) A shining silvered surface
b) A dull black surface
c) A coloured surface
d) A white surface
10.
A white surface is ........................ emitter of heat?
a) Worst
b) Good
c) Bad
d) Best
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