I. Charts
II. Posters
III. Slides
IV. Graphs
Codes :
Visual aids are tools used in teaching and presentations to enhance understanding. They are categorized based on how they are displayed, primarily into projected and non-projected types.
Non-projected visual aids do not require projection equipment. They are typically displayed directly.
The question asks for non-projected visual aids.
Therefore, the items that are non-projected visual aids are I, II, and IV.
| LIST-I | LIST-II |
| A. Electronic Flash gun | I. Audio visual |
| B. Loudspeaker | II. Non-projected audio visual |
| C. Shadow puppets | III. Audio |
| D. Youtube Channel | IV. Visual |