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free practice questions for iitjee and other exams We have added free printable assignments for iitjee and other competitive exams along with their solutions. please visit this link assignments for following chapters were uploaded Heat Transfer Thermodynamics electricity electrostatics Mechanics Work and energy Optics Magnetism Rotation SHM Waves
free practice questions for JEE Mains and Advanced and other exams Read More »
Lots of time students me how can they solve physics problems and they say that they are having difficulty in solving physics problems. So here I decided to address this issue. Now first of all I would say that do not be afraid of the subject as I say again and again physics to me is most basic of all sciences and you must find the subject interesting and give yourself reasons for studying it for me it was just what I wanted to study till my masters degree and now I like helping students understanding physics.
Solving physics problems Read More »
Mark short answer questions
1) What is the work done by a force equal to?
2. Name two factors on which kinetic energy depends.
3. What is the commercial unit of energy?
4. Relate 1 kWh with joule.
5. State the law of conservation of energy.
6. Why do we say work done against gravity is negative?
7. What is average power?
Work and energy 9th class important questions Read More »
1) If X is any point in the interior of triangle ABC. Prove that XA+XB+XC> (1/2) (AB+BC+CA).
2) Using the factor theorem, factorize the polynomial
x4 + 2×3 – 13×2 – 14x + 24.
3) Factorize: 8×4 + 2×2 -1.
4)The sides of a triangle are in the ration of 13 : 14 : 15 and its perimeter is 84 cm.
Find the area of the triangle. Also find the altitude of the triangle corresponding to the longest side.
MATHS 9th CBSE QUESTIONS Read More »
James Prescott Joule (1818 – 1889)
•He was an English physicist and brewer, born in Salford, Lancashire.
•He received his early education at home
•He studied for sometime under John Dalton
•Joule studied the nature of heat, and discovered its relationship to mechanical work .
•His first major research was concerned with determining the quantity of heat produced by an electric current and, in 1840, Joule discovered a simple law connecting the current and resistance with the heat generated.
Top Known Scientist in Heat and Thermodynamics Field Read More »
Given below are the practice test papers for class 9 science term two exams. you can download and practice them. If you like them do tell us in the comment section below the post
Class 9 term 2 science practice test papers Read More »
Central Board of Secondary Education, Delhi has been conducting CBSE group Mathematics Olympiad for students studying in its affiliated schools.
WHO CAN PARTICIPATE IN CBSE GROUP MATHEMATICAL OLYMPIAD
a) Student of class XII, XI, X or IX can participate in the competition. However, there will be a common question paper for all participants. Bright students from class VIII may also appear.
b) A school can sponsor maximum five students for the competition.
CBSE Group Mathematics Olympiad Read More »
One question has always fascinated the scientists ” When the universe began?” . Current Thinking believes that Universe began as a singularity in space and Time. The singularity is called as Big Bang. It is believed at this time everything was condensed into very small space. After that the Universe has been continuously expansion mode.
A Astronomer Edwin Hubble discovered in 1929 the rate of expansion of Universe i.e the rate at which the galaxies are receding from each other. That law is called Hubble Law. As per Law, if the two galaxies are at distance R,Their present relative velocity of separation is given by
The Age of the Universe( Big Bang) Read More »
