ICSE − Q & A

Why are slip rings used in ac generator??

Any place or website where I can find all definitions in one place?

1.In mountains,pressure is generally used for cooking,why?
2.Why is water chosen to be circulated in black painted pipes in a solar concentrator?

+ 1 more questions by sushilamod  

Can anyone please explain with steps ,how do you find the ratio of wavelengths when three different notes are given?
asked by Armk (sushilamod) 7 years ago
1

State the functions of two main parts of an ac generator? pls help!!

Is colour determined by frequency??

Draw a displacement-distance graph for two waves A and B such that the amplitude of wave A is three times that of wave B.

+ 5 more questions by ritashetty  

An engine can pump 30,000 litres of water to a vertical height of 45 metres in 10 minutes. Calculate the work done by the machine and the power. (Density of water = 103 kg/m3, 1000 litre = 1 m3, g= 9.8 m s-2).
asked by Einstien (ritashetty) 7 years ago
2

State one industrial use of alpha ,beta ,gamma radiation.
asked by Einstien (ritashetty) 7 years ago
2

Name the material used for: (i) Electric fuse.
asked by Einstien (ritashetty) 7 years ago
1

Calculate the wavelength of an electromagnetic wave of frequency 15 MHz.
asked by Einstien (ritashetty) 7 years ago
3

When a ray of light passes from air to glass, for what angle of incidence, the ray will not be deviated.
asked by Einstien (ritashetty) 7 years ago
2

I TOOK PAINS TO TYPE A HUGE ANSWER AND THE PERSON ASKED ANOTHER QUESTION. FML.

http://www.respaper.com/icse/255/340/4666-pdf.html 
question 3 (B)

Guys i am a bit weak in Calorimetry numericals..pls help me out
1.When should we use 4.2 as the specific heat capacity fr ice?
2.when should we use mcdel t=ml and when should we use mc del t =ml+ mcdel t

http://www.respaper.com/ajinsumesh/4854-zip.html Q7 c

Concise Pg 59 Numerical No: 5 (With steps) Reply ASAP.