Due to presence of _____in the eye of pigeon, the vision becomes very sharp.

Due to the presence of _______ hormone the ageing of leaves are delayed.

When aqueous CuSO_(4) solution is elestrolysed in presence of two plantinum electrodes , the solution becomes acidic . Why ?

Statement I: Diffracton can be seen clearly if the edge of obstacle or slit is very sharp. Statement II: As the size of the slit is much larger than the wave-length, so it is very difficult to capture the effect of diffraction by naked eyes.

In old age, the vision of eye becomes dim. It is due to

The stool of the baby becomes hard due to

The presence of large amount of nitrogen in the atmosphere is due to

What is the point defect due to the presence of foreign atom ? Explain with suitable example.

Due to the _____ property, freely fallling liquid drop becomes spherical.

Due to deficiency of which hormone, bones become weak in females

The distance of distinct vision for a normal eye is-