Human Eye and Colourful World — Science STD 10 — Question

In going across a period (right to left) in periodic table, the atomic size of the atom _________.

Khadins are common in ______.

The female organ of reproduction in the flower is the _________.

A ray of light which is parallel to the principal axis of a convex mirror, appears to be coming from ______ after reflection from the mirror.

Silver articles become black on prolonged exposure to air. This due to the formation of .....

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Potential difference is measured in __________ by using a __________ placed in __________ across a component.

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Lenses refract light to form images, a _________ lens can form both real and virtual images, but a diverging lens forms only ________ images.

The next higher homologue of ethanol is _________.

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When light is dim, the pupil becomes _____.

All races of man have ______ blood groups.