If a bimetallic strip is heated,it will

Calculate the volume strength of $1.5 \ N \ H_2O_2$.

$A$ person in an elevator accelerating upwards with an acceleration of $2\,m s^{-2}$ tosses a coin vertically upwards with a speed of $20\,m s^{-1}$. After how much time will the coin fall back into his hand? $(g = 10\,m s^{-2})$

$A$ long straight wire carrying a current of $30 ~A$ is placed in an external uniform magnetic field of induction $4 \times 10^{-4} ~T$. The magnetic field is acting parallel to the direction of current. The magnitude of the resultant magnetic induction in tesla at a point $2.0 ~cm$ away from the wire is
$\left(\mu_0=4 \pi \times 10^{-7} ~H/m\right)$

The point of intersection of the pair of lines represented by $x^2+xy+2y^2-3x+2y+4=0$ is

Which air pollutant is responsible for the Bhopal gas tragedy?