Question

The number of significant figures in
1.50 x 10 4
is ....
a. 2
b. 3
c. 4
d. 6
.........​

Answer 1

Answer:

2

Explanation:

zeros after a non zero number is not considered as a significant digit (rule)

Answer 2

The number of significant figures in 1.50 × 10⁴ is 3.

Rules :

• All digits from 1 to 9 are significant. Eg : 28.9 has 3 significant figures.
• Zero is considered significant if it occurs between any two non-zero numbers. Eg : 100.906 has 6 significant figures.
• Trailing zeros that are not used to hold the zero are not significant. Eg: 0.2340 has 4 significant figures.
• A zero used to fix a decimal point  is never significant. Eg : 0.00567 has 3 significant figures.