What is the $Norin-10$ gene?

Which of the following characteristics is $NOT$ applicable to algae?

Select the correct pair from the following.

If $A$ is the areal velocity of a planet of mass $M$,its angular momentum is

$A$ parallel plate capacitor of capacity $C_0$ is charged to a potential $V_0$. $(i)$ The energy stored in the capacitor when the battery is disconnected and the plate separation is doubled is $E_1$. (ii) The energy stored in the capacitor when the charging battery is kept connected and the separation between the capacitor plates is doubled is $E_2$. Then,the value of $E_1 / E_2$ is:

Photo-oxidation of chlorophyll is called