ICSE − Q & A

I am not able to understand this question which came as q.3)b) in Boards 2013,
A sound made on the surface of a lake takes 3 seconds to reach a boatman.How much time will it take to reach a diver at the same depth.
Someone plzzz explain where is the boatman, how is the sound travelling from start to diver and everything plzzzz!!!!

Wats d definition of radioactive decay...
Wat r eddy currents??

Guys btw there is no solenoid magnet part in the syllabus yayaya

+ 1 more questions by maihuarya  

Guysss can someone please tell me qhat the hell pupil analysis means???
asked by Arya Shahir (maihuarya) 6 years ago
1

dab madly if you're still up like me..

for linear magnification is it always - or - for convex and for cancave + REPLY ASAP

+ 1 more questions by somay2003  

for identifying the rays like ultra and infra can we write abt the quartz prism and rock salt prism?
asked by Somay Vaidh (somay2003) 6 years ago
1

2 : 15 
completed the phy wooooooooooooow
i will break it tom

please someone tell me what is important in electromagnetism ....... i'm really scared for that chapter !!!!!!!!!!!

hey guys i know you all are waiting for saksham's motivational speech but as u all can see that he is off respaper i would just like to try nd motivate url.....
guys dont get tensed just relax nd calm yourself have self determination nd just believe in urslef... then u can easily score good marks tommorow dont panic at the last minute the paper is gonna go very easy nd all of url will secure good marks.each one of u has worked hard the whole year nd is just gonna kill it tommrow nd ya u all will LITERALLY LAUGH after seeing the question paper because it is gonna be damn easy nd just relax now nd TRUST YOURSELF YOU KNOW MORE THAN YOU THINK U DO. nd ya dont go nd talk to any of ur friends before the examinations because they will ask the most  the toughest question on planet earth which is just futile believe in urself nd u are going to RIP  paper tommrow all the best to all u guys i have confidence in my RESMATES each one of u has the capability nd is just gonna kill this peice of crap PHYSICS relax guys ALL THE BEST  (HOPE THIS IS FOR SOME HELP TO STUDENTS WHO NEEDED MOTIVATION)
                                                                                         
                                                                                             -ARYAN KAPOOR :)

How many questions can come from Electricity and Magnetism in Section-A?

y does alpha has the best ionising power