Sodium Vapour Lamp is usually used as street light, because
A. These are cheap
B. Light from this is monochromatic and will not split through water droplets
C. It is pleasing to the eyes
D. It is brightly illuminating
Answer: Option B
Related Questions on Metal and Its Compounds
Which of the following metals cannot be easily cut by a knife?
A. aluminium
B. sodium
C. potassium
D. lithium
The chemical structure of the pearl is
A. Calcium Carbonate
B. Calcium Carbonate & Magnesium Carbonate
C. Calcium Chloride
D. Calcium Sulphate
Stainless steel does not rust because
A. chromium and nickel combine with iron
B. chromium forms an oxide layer and protects iron from rusting
C. nickel present in it, does not rust
D. iron forms a hard chemical compound with chromium present in it

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