Question
Which lens is used in sodium reflector lamp
?Solution
Convex mirrors are used as reflectors in sodium reflector lamps because they are able to spread the light over a wide area. The neon gas lights at a lower temperature. As the temperature increases the sodium begins to vaporize and the lamp turns to a pure yellow. Argon has a lower glow voltage, argon helps the smaller lamps start at a lower voltage. The larger LPS lamps used in street lighting for the most part do not use argon.
Three of the four given words are alike in a certain way and thus form a group, which of the following words does not belong to the group?
Find the odd one out
Pick out the different one:
Three of the following words are alike in some manner and hence form a group. Which word does NOT belong to that group? (The words must be considered a...
Find the odd set of numbers from the given alternatives?
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Three of the following four letter-clusters are alike in a certain way and one is different. Select the odd one.
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