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

The Correct Option is C

Celsius and Fahrenheit Scale Relationship:
The relationship between temperature variations on the Celsius scale (\( \Delta C \)) and the Fahrenheit scale (\( \Delta F \)) is defined by:
\[ \Delta F = \Delta C \times 1.8 \]

Fahrenheit Change Calculation:
With a given \( \Delta C = 40^\circ C \), 

\( \Delta F \) can be determined as:
\[ \Delta F = 40 \times 1.8 = 72^\circ F \] 

Summary:
A \( 40^\circ C \) temperature increase corresponds to a \( 72^\circ F \) increase on the Fahrenheit scale.