
A student has measured the length of a wire equal to 0.04580 m. This value of length has the number of significant figures equal to
A. Five
B. Four
C. Six
D. None of these
Answer
161.7k+ views
Hint: Before going to start this problem let us understand about significant figures. The term significant figure is defined as the number of important single digits (from 0 to 9) in the coefficient of an expression in scientific notation. The number of significant figures is also an expression that indicates the confidence or precision with which an engineer or scientist states a quantity.
Complete step by step solution:
In order to find the significant figures, there are some rules. Consider the number 0.04580. Here, if there are zeros in the starting of the number, we don’t consider that, therefore the number of significant figures is 4580 that is four. Hence, the number of significant figures equals four.
Hence, option B is the correct answer.
Additional information: These significant figures are used to establish the number which is presented in the form of digits and these carry a meaningful representation of numbers. The significant digits are also used often instead of figures. We can find the number of significant digits by counting all the values starting from the first non-zero digit located on the left.
Note:Here, in this problem it is important to remember that when we are going to find the significant figures in the given problem or in a number given. We need to count the digits in such a way that, if a number contains zero in the starting, we have to eliminate it means we should not count. Suppose in the given question if the zeros are present in the middle of the number including that we have to count.
Complete step by step solution:
In order to find the significant figures, there are some rules. Consider the number 0.04580. Here, if there are zeros in the starting of the number, we don’t consider that, therefore the number of significant figures is 4580 that is four. Hence, the number of significant figures equals four.
Hence, option B is the correct answer.
Additional information: These significant figures are used to establish the number which is presented in the form of digits and these carry a meaningful representation of numbers. The significant digits are also used often instead of figures. We can find the number of significant digits by counting all the values starting from the first non-zero digit located on the left.
Note:Here, in this problem it is important to remember that when we are going to find the significant figures in the given problem or in a number given. We need to count the digits in such a way that, if a number contains zero in the starting, we have to eliminate it means we should not count. Suppose in the given question if the zeros are present in the middle of the number including that we have to count.
Recently Updated Pages
A steel rail of length 5m and area of cross section class 11 physics JEE_Main

At which height is gravity zero class 11 physics JEE_Main

A nucleus of mass m + Delta m is at rest and decays class 11 physics JEE_MAIN

A wave is travelling along a string At an instant the class 11 physics JEE_Main

The length of a conductor is halved its conductivity class 11 physics JEE_Main

Two billiard balls of the same size and mass are in class 11 physics JEE_Main

Trending doubts
JEE Main 2025 Session 2: Application Form (Out), Exam Dates (Released), Eligibility, & More

JEE Main 2025: Derivation of Equation of Trajectory in Physics

Displacement-Time Graph and Velocity-Time Graph for JEE

Electric Field Due to Uniformly Charged Ring for JEE Main 2025 - Formula and Derivation

Class 11 JEE Main Physics Mock Test 2025

JoSAA JEE Main & Advanced 2025 Counselling: Registration Dates, Documents, Fees, Seat Allotment & Cut‑offs

Other Pages
NCERT Solutions for Class 11 Physics Chapter 1 Units and Measurements

JEE Advanced Marks vs Ranks 2025: Understanding Category-wise Qualifying Marks and Previous Year Cut-offs

Units and Measurements Class 11 Notes: CBSE Physics Chapter 1

Motion in a Straight Line Class 11 Notes: CBSE Physics Chapter 2

NCERT Solutions for Class 11 Physics Chapter 2 Motion In A Straight Line

Important Questions for CBSE Class 11 Physics Chapter 1 - Units and Measurement
