Q.
Which of the following statements is/are incorrect?
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a
The weight of a substance can be determined very accurately by using an analytical balance
b
Volume is denoted in dm3 units
c
Density of a substance is its amount of mass per unit volume
d
Candela is the luminous intensity, that emits monochromatic radiation of frequency, 540×1012 Hz
answer is A.
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Detailed Solution
The mass of a substance can be determined very accurately by using an analytical balance.
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