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CBSE->Std 9 Questions

Total Questions 1962
what is the value of a pie
what is the real value of a pie
explain latent heat
represent root2 on the number line
which is the smallest number that can be written in two ways as the sum of two square numbers?
when ever i ask a question, iam getting a proper answer but not stars in my account. why?
write an activity to show that matter is not continuous but particulate.
what are the physical aspects of matter?
why cell has different shape and size?
The Role of Youth in Realising the Dream of Dr Kalam
What is stomata?
POQ is a line. Ray OR is perpendicular to PQ. OS is another ray lying between rays OP and OR. prove that angle ROS = 1/2 (angle QOS- angle POS).
what is population density?
What is braille system?
1. Do isobars belong to the same element? justify your anser with one example. name two elements whose isotopes are used in the field of medicine.
do isobars belong to the same element? justify your answer with one example.
How sensation of sound is produced in human ear?
the mass of an iron cube having an edge of length 1.8cm is 70g.find its density?
What does electrodes mean?
This was a question in smartindia.The question was - what are the particles accomadated in an atom?The answer smartindia gave in the answersheet is electrons and protons.But as we know an atom consists of three sub-atomic particles.They are-electrons,protons and nuetrons.Then how could the answer be electrons and protons alone.Where is nuetrons??????