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ICSE/ISC->Std 10 Questions

Total Questions 428
RELATION BETWEEN CELSIUS,FARHENHEIT AND KELVIN SCALES ?
A simple U tube contains mercury to the same level in both of its arm.If water is poured to a height of 13.6 cm in one arm,how much will be the rise in mercury level in the other arm.Given: density of mercury=13.6 * 1000 kg/m cube & density of water = 1000 kg/m cube.
Why does helium have the most electron affinity though it is stable and does not have react with any other element?
DERIVE THE FORMILA F=MA?
EXPLAIN NEWTONS LAW OF GRAVITATION?
sin A(1+tan A)+cos A(1+cot A)=sec A+ cosec A
1.Prove : (i)cosec A+1/cosec A-1 = (sec A + tan A)2 (ii)sin A/sin(90-A)+cos A/cos(90-A) = sec A cosec A 2.Find x, if: sin47 sec43 + cos43 cosec 47-x cos2 45 = 0 3.If A + B =90;prove that: (i)cos A/sin B + sin A/cos B = 2 (ii)cos A sin B + sin A cos B = 1 4.Mr.Sharma invests Rs.2,40,000 for 2 years at 10% compounded annually.On the interest he earns,income tax at the rate of 20% is deducted at the end of each year.How much money will Mr,Sharma receive at the end of two years?
Find the equation of a line passing through the points (7,-3) and (2,-2). If this line meets x-axis at point P and y-axis at point Q; find the co-ordinates of points P and Q.
Extraction of Aluminium.
Clculate yhe amount and compound interest on : (i)Rs.7,500 is 2 years when the rates of interest for successive years are 8% and 10% respectively. (ii)Rs.12,500 in 3 years when the rates of interest for successive years are 8%,10% and 10% respectively.
What is Electrolysis?
How does programs based on array execute?
Two isosceles triangles have equal vertical angles. Show that the triangles are similar. If the ratio between the areas of these two triangles is 16:25,find the ratio between their corresponding altitudes.
example for a plane mirror
define DNA with diagram
What do you mean by arrays? Why is it important in java?
An experiment for Osmosis by potato osmoscope.Please explain it with a diagram.
Explain Elizabathean stage in Shakespeare's time.
A(8,-6),B(-4,2),C(0,-10) are the vertices of a triangle ABC.If P is the mid-point of AB and Q is the mid-point of AC,use co-ordinate geometry to show that PQ is parallel to BC. Give a special name to quadilateral PBCQ.
what is biome?