To calculate percentage, sum obtained marks and divide by total maximum marks, then multiply by 100. Students should follow CBSE guidelines as practicals and subject rules may vary.

If you've ever watched a glass blower at work, you've seen a material behaving in a very special way. As it cools, the viscosity of molten glass increases steadily but gradually, allowing it to be ...

The irregular, swirling motion of fluids we call turbulence can be found everywhere, from stirring in a teacup to currents in ...