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From: lockdownReply 1 of 4Reply
Subject: Contributed Answer/Explanation to Q. 43
   Impure spectrum: It is the spectrum in which some of the component colors,
   the difference of wavelengths of which are very small, overlap on one
   another. Thus, after dispersion, the component colors do not occupy separate
   distinct positions on a screen.
   Impure spectrum: It is the spectrum in which some of the component
   colors, the difference of wavelengths of which are very small, overlap
   on one another. Thus, after dispersion, the component colors do not
   occupy separate distinct positions on a screen.

Posted at: Sun Mar 7 14:15:02 2010 (GMT)

From: abhishek100031Reply 2 of 4Reply
Subject: Contributed Answer/Explanation to Q. 1
   5 m/s
   
   1/2 mv.v=750
   
   
   v.v=750/30
   
   
   v=5m/s

Posted at: Wed Apr 21 09:57:03 2010 (GMT)

From: memoalyReply 3 of 4Reply
Subject: Contributed Answer/Explanation to Q. 19
   nn

Posted at: Fri Jun 4 11:41:14 2010 (GMT)

From: akshaymbhatReply 4 of 4Reply
Subject: Contributed Answer/Explanation to Q. 8
   the amount of heat energy liberated when unit mass of water converts to ice
   without any change in temperature   
   
   L = Q / m
   
   
   S.I unit = J kg -1

Posted at: Fri Jan 28 13:36:04 2011 (GMT)

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