ICSE − Q & A

WHAT IS BACKROUND RADIATION?? GIVE EXAMPLES?

Group activity. .....lets see what your roll numbers in school are..and see whose roll numbers are similar. Mine is 21

+ 3 more questions by nischal25  

What is the gas used inside bulbs at low pressure!?
asked by Nischal Naidu (nischal25) 8 years ago
1

Who is pp33 lol
asked by Nischal Naidu (nischal25) 8 years ago
1

Why do free electrons dont leave the outermost shell
asked by Nischal Naidu (nischal25) 8 years ago
2

 Use the reading time of 15 minutes judiciously to make a proper choice of questions from section II by reading the requirements of the question carefully supported with a high degree of concentration.
 Avoid writing answers which are simply a repetition of the question. Instead be specific about the key word in that statement.
 Candidates must not leave any topic for option. All topics are covered in section I which is compulsory.
 Avoid changing the order of sequence of questions and numbering system.
 Handwriting should be neat and legible.
 Learn the principles, laws and definitions accurately.
 Ray diagrams and the other diagrams need to be practiced periodically.
 While writing the answers it is not only important to cover all the points but also to present them in a proper sequence.
 While solving a numerical it is advisable that the formula needs to be written in the beginning. Essential steps need to be shown and final answer needs to be expressed along with a proper unit. Avoid computation at the first step; let it be plain substitution as the marks are awarded for the correct substitution.
 A thorough revision of all topics is all time important.
 It is advisable to solve previous year’s papers in writing.
 More emphasis should be given on writing rather than memorizing.
 For speed in mathematical calculations; it is advisable to learn tables up to 30, know squares up to 30, cubes up to 15 and basics of fractions and decimal.
 It is better to inculcate the habit of underlining the important points or key words in the answer.

Why are coins stamped and not cast?

Join group panga its totaly upgraded and u will fet answer in secound try it join

what is d definition of principle of reversibility of light

If we are asked the unit of intensity do we write decibel or phon?

+ 1 more questions by agrek  

Soo i am pp43? Or is there some other abhishek? And also, what do i do with this?
asked by Abhishek Agrawal (agrek) 8 years ago
1

Under what condition can focal length on 2 sides of a lens vary?

Three characteristics of musical sound= loudness pitch and quality.              ORR pleasant smooth continuous loe sound level etc etc

Reverbration- If the reflector of an echo is at a distance of less than 17m ,the orginal sound mixes up with the reflected sound.Due to repeated reflections at the reflecting surface the sound gets prolonged.This effect is known as reverbration.

Anyone wanted the definition of reverbration here it is!