ICSE − Q & A

Electromag waves to detect fake currency?(Bik gai hai gormint)
And how to detect background radiations

What is the upper limit of hearing ? Is it 80dB or 120dB

+ 1 more questions by fool  

A large truck & a car both moving with a speed ‘v’ have ahead of collision and both of them come to halt after that,If the collision lasts for 10sec. which vehicle experiences the greater force of impact? which vehicle experiences the greater momentum change? which vehicle experiences the greater acceleration? why is the likely to suffer more damage than the car?
asked by Murdered Past (fool) 7 years ago
3

what is the relationship b/w the angle of incidence and refraction at min deviation position of the prism

Hi guyzzz. 
I would lyk to suggest you to read the board papers for physics of the following years: 2016,2014,2011.
I hv heard from someone that these papers are very important.

Why amplitude is more when forced vibrations' frequency matches natural frequency(i.e. resonance)?

+ 1 more questions by akhooda  

In concise physics it is written that one can prove Newton's first and third laws of motion using his second law. I can prove the first one. Can anyone tell me how to prove the third law?
asked by Anurag Hooda (akhooda) 7 years ago
1

What is length of CERN tunnel in Geneva,Switzerland

In Newton's first law of motion.... Is it okay if we write it as.... unless an external "unbalanced" force is applied on it. This statement is right but will they deduct marks for it being not exactly same to the def. given in the text book?

How does resistance depend on the area of cross section of a conductor?

http://www.respaper.com/harshavvardhan/774/6557-zip.html q7 -c with answers reasons please

Is osterd's law there in syllabus?
If yes then please explain in short.