i) An isotope which is artificially produced is generally unstable and is known as
radioisotope.
ii) Ergosterol is a cholesterol derivative present in the stomach which produces vitamin D with the help of ultra violet light.

iii) The three ossicles, the malleus, he incus and the stapes stretch across the middle ear from
the eardrum to the membrance of the oval window.
iv) A device that converts light energy to mechanical energy or vice versa is called a
transducer.
v) To covert temperatures on Celsius Scale to Fahrenheit scale or vice versa the formula
used is F+32/100 = C/180.
vi) Random error arises due to factors like incorrect caliberation of the instrument or
consistently incorrect procedures adopted by a nurse.
vii) A nurse walking with good rubber soled shoes in the ward, as the heel strikes the ground,
the friction between the heel and the surface make the foot slip.
viii) Patients in bed for a long time develop bed sores because the heavier portions press more
firmly against the mattress than do the lighter portions and in turn receive a greater
reaction force.
ix) The foetus inside the amniotic fluid in the uterus is protected till its birth because of the
pascal’s law.
x) The constriction in the bore of the tube immediately above the bulb helps the column of
mercury to continue to show the maximum level even after use in a clinical thermometer.

Based on the given statements, here are the answers:

i) An isotope which is artificially produced is generally unstable and is known as radioisotope.
- TRUE

ii) Ergosterol is a cholesterol derivative present in the stomach which produces vitamin D with the help of ultraviolet light.
- FALSE

iii) The three ossicles, the malleus, the incus, and the stapes stretch across the middle ear from the eardrum to the membrane of the oval window.
- TRUE

iv) A device that converts light energy to mechanical energy or vice versa is called a transducer.
- TRUE

v) To convert temperatures on the Celsius scale to Fahrenheit scale or vice versa, the formula used is F+32/100 = C/180.
- FALSE (The correct formula is F = (9/5)C + 32)

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