A) \[\text{0 }\!\!{}^\circ\!\!\text{ C}\] to \[\text{10 }\!\!{}^\circ\!\!\text{ C}\]
B) \[\text{- 4 }\!\!{}^\circ\!\!\text{ C}\] to \[\text{8 }\!\!{}^\circ\!\!\text{ C}\]
C) \[\text{-15 }\!\!{}^\circ\!\!\text{ C}\] to \[\text{-8 }\!\!{}^\circ\!\!\text{ C}\]
D) \[\text{-7 }\!\!{}^\circ\!\!\text{ C}\] to \[\text{0 }\!\!{}^\circ\!\!\text{ C}\]
Correct Answer: A
Solution :
(a) Rise in temperature\[=(10-0){}^\circ C\] \[=10{}^\circ C\] (b) Rise in temperature\[=(8-(-4)){}^\circ C\] \[\text{=(8+4) }\!\!{}^\circ\!\!\text{ C=12 }\!\!{}^\circ\!\!\text{ C}\] (c) Rise in temperature \[=(-8-(-15)){}^\circ C\] \[=(-8+15){}^\circ C=7{}^\circ C\] (d) Rise in temperature \[=(0-(-7)){}^\circ C\] \[\text{=(0+7) }\!\!{}^\circ\!\!\text{ C=7 }\!\!{}^\circ\!\!\text{ C}\] Thus, option (b) has maximum rise in temperature.
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