Question

On Celsius scale, the temperature of a body increases by $40^\circ \text{C}$. The increase in temperature on Fahrenheit scale is:

• A. $70^\circ \text{F}$
• B. $68^\circ \text{F}$
• C. $72^\circ \text{F}$
• D. $75^\circ \text{F}$

Answer 1

Answer: (C)

$72^\circ \text{F}$

Answer 2

Relationship Between Celsius and Fahrenheit Scales:
The relationship between temperature changes on the Celsius scale ($\Delta C$) and the Fahrenheit scale ($\Delta F$) is given by:
$\Delta F = \Delta C \times 1.8$

Calculate the Change in Fahrenheit:
Given $\Delta C = 40^\circ C$,

we can find $\Delta F$ as follows:
$\Delta F = 40 \times 1.8 = 72^\circ F$

Conclusion:
The increase in temperature on the Fahrenheit scale corresponding to a $40^\circ C$ increase is $72^\circ F$.