Question

Match List I with List II :

List I	List II
(A) Electrical Energy into mechanical energy	(III) Electric motor
(B) Electrical Energy into Light energy	(II) Tube light
(C) Mechanical Energy into Electrical Energy	(I) Dynamo
(D) Solar energy into electrical energy	(IV) Solar cell

Choose the correct answer from the options given below :

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

Hint:

Motor and Dynamo are opposites. Motor uses current to move (\(E \rightarrow M\)), while a Dynamo moves to create current (\(M \rightarrow E\)).

Answer 1

The Correct Option is B

Step 1: Understanding the Concept:
Energy transformation is the process of changing energy from one form to another. Devices are often designed specifically for these conversions.
Step 2: Detailed Explanation:
1. Electrical Energy to Mechanical Energy (A): An Electric motor (III) uses electricity to create motion (e.g., in a fan). Thus, (A) matches with (III).
2. Electrical Energy to Light Energy (B): A Tube light (II) or bulb converts electricity into illumination. Thus, (B) matches with (II).
3. Mechanical Energy to Electrical Energy (C): A Dynamo (I) or generator converts rotational motion into electricity. Thus, (C) matches with (I).
4. Solar Energy to Electrical Energy (D): A Solar cell (IV) (photovoltaic cell) captures sunlight and generates electric current. Thus, (D) matches with (IV).
Step 3: Final Answer:
The correct matching sequence is (A)-(III), (B)-(II), (C)-(I), (D)-(IV), which is option (2).