Human Eye and Colourful World — Science STD 10 — Question

Complete the following sentences:
A long-sighted person cannot se ______ objects clearly. Long-sightedness can be corrected by using ______ lenses.

Fill in the following blanks with suitable words:
In a nuclear power station, nuclear fission takes place in the ____________.

Fill in the following blanks with suitable words:
When light is dim, the pupil becomes _____.

Resistance is measured in _________ The resistance of a wire increases as the length _________ as the temperature _________ and as the cross-sectional area _________.

Fill in the following blank with a suitable word:
The amount of heat produced by burning a unit mass of a fuel completely is known as itsa__________ value.

Having two eyes enables us to judge ______ more accurately.

Fuse wires are not connected in _______

Fill in the following blanks with suitable word:
Lenses refract light to form images, a _________ lens can form both real and virtual images, but a diverging lens forms only ________ images.

Cataract is due to the growth of ________