Write type of error in measurement of physical quantity and explain.
Answers
Answer:
TYPES OF ERRORS - DEFINITION
Instrumental (or constant) Error: These errors are caused due to fault construction of instruments. Such errors can be minimized by taking same measurement with different accurate instruments.
Systematic (Persistent) Error: This is an error due to defective setting of an instrument. Such error can be minimised by detecting its causes.
Personal Error: These errors introduced due to fault of an observer taking readings, referred to human error.
Random (Accidental) Error: Even after minimising above types of errors, error may occur due to different factors like pressure, temperature fluctuation in voltage while the experiment is being performed. Such errors cannot be eliminated but can be minimised.
Explanation:
Answer:
parallax error
Explanation:
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.