Which media format is least effective for creating a visual impact on viewers?

Radio is the least effective media format for creating a visual impact on viewers primarily because it relies solely on audio to convey messages. Unlike visual media, it does not incorporate images, videos, or graphical elements that can capture attention and evoke emotions visually. This makes radio less impactful in creating a strong visual association with a brand or product.

In contrast, magazines and billboards utilize striking visuals and designs that can instantly attract the viewer’s attention through powerful imagery and layouts. Television combines both audio and visual elements, making it highly effective for storytelling and showcasing products in a dynamic way. Thus, while radio can communicate ideas and create auditory engagement, it lacks the visual component essential for making a memorable visual impact.