With reference to street-lighting, how do sodium lamps differ from LED lamps?1. Sodium lamps produce light in 360 degrees but it is not so in the case of LED lamps.2. As street-lights, sodium lamps have longer life span than LED lamps.3. The spectrum of visible light from sodium lamps is almost monochromatic while LED lamps offer significant colour advantages in street-lighting.Select the correct answer using the code given below. - Study24x7
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Dev kumar
01 Jan 1970 05:30 AM study24x7 study24x7

With reference to street-lighting, how do sodium lamps differ from LED lamps?1. Sodium lamps produce light in 360 degrees but it is not so in the case of LED lamps.
2. As street-lights, sodium lamps have longer life span than LED lamps.
3. The spectrum of visible light from...

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A

3 only

B

2 only

C

1 and 3 only

D

1, 2 and 3

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