If $Alpha$,$Beta$,and $Gamma$ rays carry the same momentum,which has the longest wavelength?

Which one of the following structures between two adjacent cells is an effective transport pathway?

The coefficients of apparent expansion of a liquid when determined using two different vessels $A$ and $B$ are $\gamma_1$ and $\gamma_2$,respectively. If the coefficient of linear expansion of the vessel $A$ is $\alpha$,the coefficient of linear expansion of the vessel $B$ is

Which one of the following pairs is correctly matched with regard to the codon and the amino acid coded by it?

If $y=y(x)$ is the solution of the differential equation $\left(\frac{2+\sin x}{y+1}\right) \frac{d y}{d x}+\cos x=0$ with $y(0)=1$,then $y\left(\frac{\pi}{2}\right)$ is equal to

Which of the following is known as the pacemaker of the heart?