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Byju's Answer
Standard VII
Physics
Vector Quantity
Identify the ...
Question
Identify the type of error in measurement for the following cases. (3 marks)
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Solution
Zero error. The zero of the ruler is not alligned with the object. (1 mark)
Improper allignment. The ruler is not alligned properly with the object. (1 mark)
Zero error. Broken scale will result in inacurate readings as the broken part is being used as the zero. (1 mark)
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You are given following current-time graphs from two different sources:
(a) Name the type of current in two cases.
(b) Identify any one source for each type of these currents.
(c) What is the frequency of current in case II in India?
ā(d) Use above graphs to write one difference between the current in two cases.