10 : Day VII

Woke up at 7 and studied till late 9:30 am chemistry and other few revisions. I was in a happy mood today. Went on the train which left Kalighat station at 10:45 am, a previous one of the usual train we took before at 10:51 am. Debojyoti was there. At Masterday Surya Sen station, instead of departing the station I insisted on sitting on the quiet platform till 11:20 am. Debojyoti was studying notes at a seat. Babai and I sat on two adjacent metal chairs and talked about the good and bad looks of the newly built Metro buildings, where unlike other stations, it was overhead on fly-over. I left Metro station at 11:19 am (so precise as I checked the large red LED digital pixel clock there). I went into school compound and today there was little time to chat there. Entered the examination hall. Question was very easy, infact much than the bad questions of yesterday History and Geography the day before yesterday. I gave it good. But to my utter surprise, I was unable to attend the short question - "conversion of sound to electrical energy". But sigh comes here as I was the one who debated with Swati di and other students upon the fact that microphones actually collect sound waves and convert it into electrical impulses and proved it earlier. Anyway I am very angry on me on this context. Why can't I apply the correct things and thoughts of mine on correct occasion sometimes?