व्हेन वास द कॉन्फ्रेंस ऑर्गेनाइज्ड टू ब्रिंग अवेयरनेस बोर्ड एंड मोमेंट
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The spectrum of while light consists of six basis colour arranged in a specific order ..Although newton understood that a beam of light of a particular colour is always devoted by the same amount
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