Question

Which of following is incorrect about Bonne's Projection?

• A. Parallels are concentric arcs of circles.
• B. Radial scale is true along the central meridian.
• C. It is an orthomorphic projection.
• D. It is used for countries like France and India.

Hint:

Remember the characteristics of Bonne's Projection: \[ \boxed{ \begin{aligned} \text{Type} &\rightarrow \text{Pseudoconical}, \text{Property} &\rightarrow \text{Equal-area}, \text{Central Meridian} &\rightarrow \text{True Scale}, \text{Use} &\rightarrow \text{France, India and Mid-latitude Regions}. \end{aligned} } \] Mnemonic: “Bonne = Balanced Area, Not Angles.”

Answer 1

The Correct Option is C

Concept: Bonne's Projection is a pseudoconical equal-area projection. It preserves area but does not preserve shape (angles). Hence, it is not an orthomorphic (conformal) projection.

Step 1: Examine each statement. \[ \begin{aligned} A. &\ \text{Correct. Parallels are concentric arcs of circles.} B. &\ \text{Correct. Scale is true along the central meridian.} C. &\ \text{Incorrect. Bonne's projection is equal-area, not orthomorphic.} D. &\ \text{Correct. It is commonly used for mapping countries such as France and India.} \end{aligned} \]

Step 2: Identify the incorrect statement. \[ \boxed{\text{Bonne's Projection is not an orthomorphic projection.}} \] Hence, \[ \boxed{\text{(C)}} \]