MCQOPTIONS
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| 1. |
Match the entries in Column j with those in Column II correctly. Column-I Column-II[a]Microphone1.Wind energy into mechanical energy[b]Speaker2.Mechanical energy into sound energy[c]Reeds of a harmonium3.Electrical energy into sound energy[d]Sails of a ship4.Sound energy into electrical energy |
| A. | a - 4, b - 3, c - 1, d - 2 |
| B. | a - 1, b - 2, c - 3, d - 4 |
| C. | a - 4, b - 2, c - 3, d - 1 |
| D. | a - 4, b - 3, c - 2, d - 1 |
| Answer» E. | |