1.

Question : Matchthe followingand choose correctcombinationfrom the optiongiven {:("column I","Column II"),("a Visible light","i 0.1 to 1nm"),("b Ultraviolet","ii 400 to 700 nm"),("c X-Rays","iii Longer than 740 nm"),("d Infrared","iv 100 to 400 nm lt 0.1 nm"):}

Answer»

`a- a -I, B-ii ,c-iv , d-v`
`b a-iii,b-ii,c-I ,d-I (d ) , a-ii ,b-iv , c-I , d-ii`
`a-v,b-iv ,c-iii ,d-ii`
`a-iv, b-ii,c-iii,d-i`

ANSWER :d


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