The products of light reaction of photosynthesis is

Explanation

Light reaction takes place in gr,ana thylakoids of chloroplast. The following events occurs in the light dependent reaction.
1. Step - I : The chlorophyll on exposure to light energy becomes activated by absorbing photons of light energy.
2. Step - II : The activated energy is used in splitting the water molecule into hydrogen `(H^(+))` and hydroxyl ion `(OH^(-))`. This reaction is known as photolysis or HIll's reaction.
`H_2O to H^(+)+OH^(-)`
3. Step - III : Water `(H_2O)` and oxygen `(O_2)` are produced by the `(OH^(-))`ions through a series of reaction.
4. Step· IV: `H^(+)` ions are involved in the synthesis of ATP and NADPH which are the end products o f light reaction. These are called assimilatory powers.