Question:
The number of significant figures in 0.020260 is
The number of significant figures in 0.020260 is
Show Hint
Zeros between non-zero digits and trailing decimal zeros are always significant.
Updated On: Jun 22, 2026
- 6
- 4
- 3
- 5 \bigskip
Show Solution
Verified By Collegedunia
The Correct Option is A
Solution and Explanation
Concept:
Significant figures represent the number of meaningful digits in a number that contribute to its precision. Rules for counting significant figures are very important in measurements and experimental physics.
Step 1: Write the number clearly.
\[ 0.020260 \]
Step 2: Apply rules of significant figures.
We recall:
• Leading zeros are NOT significant.
• Zeros between non-zero digits ARE significant.
• Trailing zeros after decimal ARE significant.
Step 3: Identify significant digits.
The number can be rewritten conceptually as: \[ 0.020260 = 2,0,2,6,0 \] Now analyze:
• First two zeros → not significant
• Digits 2, 0, 2, 6, 0 → all significant So total significant figures: \[ = 6 \] Final Answer: \[ (A)\ 6 \]
Step 1: Write the number clearly.
\[ 0.020260 \]
Step 2: Apply rules of significant figures.
We recall:
• Leading zeros are NOT significant.
• Zeros between non-zero digits ARE significant.
• Trailing zeros after decimal ARE significant.
Step 3: Identify significant digits.
The number can be rewritten conceptually as: \[ 0.020260 = 2,0,2,6,0 \] Now analyze:
• First two zeros → not significant
• Digits 2, 0, 2, 6, 0 → all significant So total significant figures: \[ = 6 \] Final Answer: \[ (A)\ 6 \]
Was this answer helpful?
0
0
Top TS EAMCET Physics Questions
- A wooden box lying at rest on an inclined surface of a wet wood is held at static equilibrium by a constant force $F$ applied perpendicular to the incline. If the mass of the box is $1\,kg$, the angle of inclination is $30^{\circ}$ and the coefficient of static friction between the box and the inclined plane is $0.2$, the minimum magnitude of $\vec{F}$ is (Use $ g = 10\,m/s^2$)
- A metre scale made of steel reads accurately at $25^{\circ} C$ . Suppose in an experiment an accuracy of $0.06\, mm$ in $1\,m$ is required, the range of temperature in which the experiment can be performed with this metre scale is (coefficient of linear expansion of steel is $ 11 \times 10^{-6} /^{\circ} \, C$ )
- Consider a solenoid carrying current supplied by a DC source with a constant emf containing iron core inside it. When the core is pulled out of the solenoid, the change in current will
- A parallel beam of light of intensity \(I_0\) is incident on a coated glass plate. If \(25\%\) of the incident light is reflected from the upper surface and \(50\%\) of light is reflected from the lower surface of the glass plate, the ratio of maximum to minimum intensity in the interference region of the reflected light is
- A thermocol box has a total wall area (including the lid) of $1.0 m ^{2}$ and wall thickness of $3 cm$. It is filled with ice at $0^{\circ} C$. If the average temperature outside the box is $30^{\circ} C$ throughout the day, the amount of ice that melts in one day is [Use $K_{\text {thermocol }}=0.03 W / mK$ $.L_{\text {fusion (ice) }}=3.00 \times 10^{5} J / kg ]$
View More Questions
Top TS EAMCET Units, Dimensions and Measurements Questions
- The density of a substance of mass 5.318 g which occupies a volume of 2.43 cm³ is (up to correct significant figures):
- A physical quantity is represented by $P = X^aY^bZ^c$. If the errors in the measurements of the physical quantities X, Y and Z are respectively a%, b% and c%, then the percentage error in the determination of quantity P is
- If the relative error in the determination of area of a body is 0.08, then the percentage error in the determination of its volume is
- Which of the following statements is not correct regarding significant figures?
- If the distance between Earth and Jupiter is \(810\times10^6\text{ km}\) and the angular diameter of Jupiter measured from Earth is \(36''\), then the diameter of Jupiter (in km) is nearly:
View More Questions
Top TS EAMCET Questions
- A bag contains $5$ red balls, $3$ black balls and $4$ white balls are drawn at random. The probability that they are not of same colour is
- If $cosec\, \theta - \cot \theta = 2017$, then quadrant in which $\theta $ lies is
- If $a$ is a unit vector, then $| a \times \hat{ i }|^{2}+| a \times \hat{ j }|^{2}+| a \times \hat{ k }|^{2}=$
- $A$ straight line makes an intercept on the $Y$-axis twice as long as that on $X$-axis and is at a unit distance from the origin. Then the line is represented by the equations
- Let $S$ and $S'$ be the foci of an ellipse and B be one end of its minor axis. If $SBS'$ is an isosceles right angled triangle then the eccentricity of the ellipse is
View More Questions