The three lines given by the combined equation $y^3 - 4x^2y = 0$ represent:

The point at which the circles $x^2+y^2-4x-4y+7=0$ and $x^2+y^2-12x-10y+45=0$ touch each other is:

The thermally most stable compound is:

What is obtained when gypsum is heated at $300\,^oC$?

If $x$ is real,then the minimum value of $y = \frac{x^2-x+1}{x^2+x+1}$ is

$A$ simple harmonic oscillator consists of a particle of mass $m$ and an ideal spring with spring constant $k$. The particle oscillates with a time period $T$. The spring is cut into two equal parts. If one part oscillates with the same particle,the time period will be