calculate the frequency of radiation with wave length 3000 A°
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Ans: Frequency (ν) = C/λ (wave length)
= (3*108 meters/sec)/(3000*10-10 meters)
= 1015 sec-1
Energy = hν
= (6.63*10-34 Joule.Sec). 1015 sec-1
Energy = 6.63*10-19 Joule
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