Question

Match List-I with List-II 

Choose the correct answer from the options given below: 
 

• (A) - (IV), (B) - (III), (C) - (II), (D) - (I)
• (A) - (I), (B) - (II), (C) - (III), (D) - (IV)
• (A) - (III), (B) - (I), (C) - (II), (D) - (IV)
• (A) - (IV), (B) - (III), (C) - (I), (D) - (II)

Hint:

To remember the categories:
Projected $\rightarrow$ Needs light/screen (Films).
3D $\rightarrow$ Has depth/volume (Model).
2D $\rightarrow$ Flat surface (Poster).
Non-projected $\rightarrow$ Direct display (Bulletin Board).

Answer 1

The Correct Option is A

Step 1: Understanding the Concept:
Audio-visual aids are instructional materials used by extension workers to facilitate learning and enhance message retention.
These aids are classified based on their physical dimensions (two-dimensional or three-dimensional) and how they are displayed (projected or non-projected).
Selecting and matching these aids to their correct category is a fundamental aspect of extension methodology.

Step 2: Detailed Explanation:
Let us analyze each classification and its corresponding example:
(A). Non-Projected Aids \(\rightarrow\) (IV) Bulletin Board:
Non-projected aids do not require an optical projection system or electricity to be displayed.
A Bulletin Board is a classic non-projected display board used to pin notices, posters, and informative leaflets in a prominent public place.
Thus, (A) matches with (IV).
(B). Two-dimensional (2D) Aids \(\rightarrow\) (III) Poster:
Two-dimensional aids are flat instructional materials possessing only length and width.
A Poster is a classic 2D visual aid that combines illustrations, diagrams, and brief text on a flat sheet of paper to convey a concise message.
Thus, (B) matches with (III).
(C). Three-dimensional (3D) Aids \(\rightarrow\) (II) Model:
Three-dimensional aids possess depth in addition to length and width, representing real objects.
A Model is a 3D replica or representation of a real object (such as a model of a sanitary latrine or an improved smokeless chulha), allowing learners to observe its structural details.
Thus, (C) matches with (II).
(D). Projected Aids \(\rightarrow\) (I) Films:
Projected aids require an optical projector (such as an LCD projector or slide projector) and a screen to display the images or video.
Films (motion pictures) are classic projected audio-visual aids that combine moving images and synchronized sound.
Thus, (D) matches with (I).
Combining these matches gives: (A) - (IV), (B) - (III), (C) - (II), (D) - (I).

Step 3: Final Answer:
Therefore, the correct match is represented by option (A).