Advertisements
Advertisements
प्रश्न
Amongst the sources listed below, name two powerful sources of ultraviolet radiations.
- A room heater
- Sun
- Electric lamp
- Arc welding
अति संक्षिप्त उत्तर
Advertisements
उत्तर
The two powerful sources of ultraviolet radiation are the sun and arc welding (an electric arc).
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 5: Electromagnetic Waves and Spectrum - EXERCISE [पृष्ठ ११४]
