Question

60. MATCH THE FOLLOWING
Column A
A. Insulator
B. Good conductor
C. Radiation
D. Mercury
Column b
(i) Thermometer
(ii) Plastic
(iii) Aluminium
(iv) Room heater

O A-(ii), B-(iii), C-(iv), D-(i)
O A-(ii), B-(iii), C-(i), D-(iv)
O A-(iv), B-(ii), C-(i), D-(ii)
0 A-(iv), B-(iii), C-(i), D-(iii)​

Answer 1

Appropriate question :-

$\boxed{\begin{array} {c|c} \bf{Column \: A} & \bf{Column \: B} \\ \dfrac{\qquad\qquad\qquad\qquad}{} & \dfrac{\qquad\qquad\qquad\qquad}{} \\ \sf{A. \: Insulator} & \sf{(i) \: Thermometer} \\ \dfrac{\qquad\qquad\qquad\qquad}{} & \dfrac{\qquad\qquad\qquad\qquad}{} \\ \sf{B. \: Good \: conductor} & \sf{(ii) \: Plastic} \\ \dfrac{\qquad\qquad\qquad\qquad}{} & \dfrac{\qquad\qquad\qquad\qquad}{} \\ \sf{C. \: Radiation} & \sf{(iii) \: Aluminium} \\ \dfrac{\qquad\qquad\qquad\qquad}{} & \dfrac{\qquad\qquad\qquad\qquad}{} \\ \sf{D. \: Mercury} & \sf{(iv) \: Room \: heater}\end{array}}$

Answer :-

• A-(ii), B-(iii), C-(iv), D-(i)

$\boxed{\begin{array} {c|c} \bf{Column \: A} & \bf{Column \: B} \\ \dfrac{\qquad\qquad\qquad\qquad}{} & \dfrac{\qquad\qquad\qquad\qquad}{} \\ \sf{A. \: Insulator} & \sf{ (ii) \: Plastic } \\ \dfrac{\qquad\qquad\qquad\qquad}{} & \dfrac{\qquad\qquad\qquad\qquad}{} \\ \sf{B. \: Good \: conductor} & \sf{ (iii) \: Aluminium} \\ \dfrac{\qquad\qquad\qquad\qquad}{} & \dfrac{\qquad\qquad\qquad\qquad}{} \\ \sf{C. \: Radiation} & \sf{ (iv) \: Room \: heater } \\ \dfrac{\qquad\qquad\qquad\qquad}{} & \dfrac{\qquad\qquad\qquad\qquad}{} \\ \sf{D. \: Mercury} & \sf{(i) \: Thermometer}\end{array}}$

Reasons :-

• Plastic is a insulator.

• Aluminum is a good conductor and has a low density that makes it a good option for long distance power lines and electrical cables.

• Room heater causes radiation.

• Mercury is a good conductor of heat and it expands and contracts with the changes in the temperature. Hence, the slightest change in the temperature is noticed in the thermometer.