Yes, anyway if you are being this go to this first illumination and see this final of the first illumination, I think this would be the first illumination then note down go at 180 degree approximately and there for second illumination you take the reading. this reading takes few times; at this position you can take few times or rotate, rotate and rotate and take 2 3 time and take an average of that one, Now, you take out the solution if you have more solutions here I have more solutions I will put the distilled water I have to calculate what percentage I want.
हाँ तो यदि इसे यहाँ रखेँ और एकसमान दीप्त की स्थिति लें , इसे फ़ाइनल करें और इसका पाढ्यांक ले लें फिर 180 के कोण से घुमा दें और अब दूसरे एकसमान दीप्त की स्थिति लें, इसे कई बार दोहरा लें घुमा कर 2-3 पाध्यंक लें और उसका माधी निकालें, अब आप इस विलयन के स्थान पर दूसारी ज्ञात सांद्रता का विलयन लें जो हमने तैयार किया था ।