Question

Answer the following questions:
1.Which instrument would you prefer to use for the
following measurements?
i) The diameter of a cylindrical can.
ii) The length of a wall.
iii)The length of a crayon.
2. What is called as parallax error?
3.Write the formula to calculate the diameter of a thin wire.
SESSION 33:
II. Convert the following to the indicated unit:
i)5 ft 5 in = ------------------- cm.
ii)4.7 m = ------------------ ft, in.
iii)2.25 m = ------------------ cm.
iv)200 cm = ----------------- m.
v)5.5 mm = ----------------- cm

Answer 1

Explanation:

2.Measurements made by viewing the position of some marker relative to something to be measured are subject to parallax error if the marker is some distance away from the object of measurement and not viewed from the correct position.

3.The diameter of a thin wire is very small and cannot be measured in cm. The appropriate measurement instrument to use is a micrometer screw gauge. It is an instrument used for measuring accurately the diameter of a thin wire or the thickness of a metal sheet.

Answer 2

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3. ⏸ Convert the following to unit :

i) 5 ft 5 in = 162.5 cm

ii)4.7 m = 15 ft 8 in

iii)2.25 m = 225cm

iv)200 cm = 2m

v)5.5 mm = 0.55 cm

$\colorbox{yellow}{hope \: this \: will \: help \: u }$