The first radio programme in India was broadcast in 1923. It was initiated by the Indian Broadcasting Company (IBC), which later became the All India Radio (AIR). Initially, radio broadcasts were limited to certain cities, and they played an important role in providing information and entertainment to the public.
Thus, the correct answer is 1923.
| LIST I Weather element | LIST II Instrument | ||
|---|---|---|---|
| A | Temperature | I | Dew gauge |
| B | Rainfall | II | Rain gauge |
| C | Wind velocity | III | Thermometer |
| D | Dew | IV | Anemometer |
Select the statements that are CORRECT regarding patterns of biodiversity.
Which of the following hormone is not produced by placenta ?
List - I | List - II | ||
| A | Streptokinase | I | Blood-Cholestrol lowering agents |
| B | Cyclosporin | II | Clot Buster |
| C | Statins | III | Propionibacterium sharmanii |
| D | Swiss Cheese | IV | Immuno suppressive agent |
Which of the following option determines percolation and water holding capacity of soils ?