ICSE − Q & A

If there are two guitars which have the same frequency and amplitude how can they be differentiated?(The first thought that stuck me was that their quality can differentiate them but is quality different for the same instruments?)

Anyone here from last year? If so, HIHIHIHIHIHIHIHI! So good to see you again. Man the nostalgia when I look at this page again. Seeing Sam back at his motivational posts. Good to see Albert Einstein ;)
To all those who are giving their boards this year. Put in all your efforts in it. Its your time because apna time aayega. Dont let anyone else take this opportunity away from you. Its your time to shine. It'll all get over soon and you'll back and see what a beautiful journey it was. Trust me it will all be great! With hope in your heart and determination, go ahead-- PAPER MEIN FAAD DAALNA! Aisa likhna ki examiner check karte karte hil jaaye. 
Love,
Your senior,
Z.

A man having a box in head climbs a slope and another man  having an identical box walks the same distance on a levelled road.Who does more work against the force of gravity and why? (ICSE question)

Endothermic chemical reaction? 
Energy change

In which circuit is the current more: series or parallel?

Please can somebody solve Q 8. (c) 
https://www.respaper.com/ruaanb999/6630-pdf.html

Why is the temperature of the electrolyte of the cell is indirectly proportional to the internal resistance of the cell?

Will we get the grace marks for History ?

Hey guys, am an ex-ICSE student (and ex-ResPaperite) who got 98.4% in boards, will be active for this weekend if you guys have any questions! Good luck!

People please check Q3 a) in this paper:

https://www.respaper.com/hermione02/3227-zip.html?cmd=conv