Question
Column-I gives some devices and Column-II gives some processes on which the functioning of these devices depend. Match the devices in Column-I with the processes in Column-II and indicates your answer by darkening appropriate bubbles in the 4 × 4 matrix given in the ORS.
Column-I
Column-II
(p) Bimetallic strip
(a) Radiation from a hot body
(q) Steam engine
(b) Energy conversion
(r) Incandescent lamp
(c) Melting
(s) Electric fuse
(d) Thermal expansion of solids
(IIT JEE 2007)
Column-I
Column-II
(p) Bimetallic strip
(a) Radiation from a hot body
(q) Steam engine
(b) Energy conversion
(r) Incandescent lamp
(c) Melting
(s) Electric fuse
(d) Thermal expansion of solids
(IIT JEE 2007)
Answer: Option A
:
A
Bimetallic strip is based on thermal expansion of materials.
In stream engine, internal energy of fuel (say coal) is converted into mechanical work.
In incandescent lamp and fuse also energy is converted from electrical to heat.
Fuse is based on melting of fuse wire if suddenly current increases.
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:
A
Bimetallic strip is based on thermal expansion of materials.
In stream engine, internal energy of fuel (say coal) is converted into mechanical work.
In incandescent lamp and fuse also energy is converted from electrical to heat.
Fuse is based on melting of fuse wire if suddenly current increases.
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