Step 1: Concept
Sfumato is an artistic technique that involves subtle blending of colors and tones to create a soft, hazy effect. It was notably used by Leonardo da Vinci to achieve a sense of depth and form without sharp outlines.
Step 2: Meaning
The term "sfumato" comes from the Italian word "sfumare," meaning to smoke or fade out. This technique is characterized by the gradual transition between colors and tones, creating a smoky-like appearance in artworks.
Step 3: Analysis
Assertion A states that sfumato defines form through delicate gradations of light and shade. This aligns with Leonardo da Vinci's method of using subtle color transitions to create depth and volume in his paintings. The term "delicate" accurately describes the fine, gradual changes used in sfumato.
Reason R explains that sfumato is achieved by applying thin glazes of paint, which indeed produces a soft, misty effect. This technique allows for a smooth blending of colors, resulting in a dreamlike appearance as described. The application of thin glazes directly supports the assertion about creating a soft and hazy look.
Given both assertions are correct and reason R accurately explains how sfumato is achieved, option A is the appropriate choice.
Step 4: Conclusion
Both the assertion and the reason correctly describe the technique of sfumato and its effects on art.
Final Answer: (A)