ICSE − Q & A

electrical energy means in KWh not in joule

+ 1 more questions by shodhansonofsridevi  

since intensity is square of amplitude and also square of frequency and we know that loudness is equal to frequency, so the ans. is 3:4.
asked by Shodhan Shetty (shodhansonofsridevi) 8 years ago
2

guys i have written one extra question keeping a big heading as extra in section B .... i got nearly 30 min left so i attempted it.....after the exam i got to know that i would lose nearly 5 marks in the extra question...where as rest of the questions were nice....will they see extra question ? or only consider best 4 ??

Formation of chloroform from methane is an example of
a) Addition b) Dehydration c) Substitution  d) Elimination

Hwo did you do the exam guys anyone centum

guys in the section A in the resistance for music system i got it wrong in the last step and wrote 300A in place of 30 A..will i get step marking there or any grace marks..pls reply

+ 1 more questions by ishanuj99  

what was the frequency ratio?? i wrote..4:3 but many were saying 1:1
asked by Ishanuj Hazarika (ishanuj99) 8 years ago
5

Q.5 Efficiency...also plzzzz show how....??????

energy conversion of cathode ray tube

+ 1 more questions by bhavesh988  

answer for Q1 d
asked by Bhavesh Choudhari (bhavesh988) 8 years ago
1

How many marks would lose for writing all info for calorimetry sum? I didn't write mc(T-t) on right side of =. That's the reason I got it wrong. I hope I don't get 0 cause it's 4 marks!

Heat energy per minute for 4ohm resistor?

Was the heat answer in section b 84.45grams?