Product $(A)$ is

$A$ particle is performing $U.C.M.$ along the circumference of a circle of diameter $50 \ cm$ with frequency $2 \ Hz$. The acceleration of the particle in $m/s^2$ is

The maximum value of $\sin (\cos (\tan x))$ is

The perimeter of a sector is a constant. If its area is to be maximum,the sectorial angle is:

Which of the following is true in the case of an adiabatic process,where $\gamma = C_p / C_V$?

What is $Z$ in the following reaction? $CH_3-CH_2-CO_2^{\ominus} Na^{\oplus} \stackrel{NaOH / CaO}{\longrightarrow} Z$