Fill in the blanks:
$(a)$ To measure the direct distance of a mountain,....... is used.
$(b)$ For the measurement of time,the ........... clock is the most accurate.
$(c)$ Rounding off $15.753$ to three significant figures gives ....... .
$(a)$ To measure the direct distance of a mountain,....... is used.
$(b)$ For the measurement of time,the ........... clock is the most accurate.
$(c)$ Rounding off $15.753$ to three significant figures gives ....... .
(A) Echo method or reflection method is used to measure the distance of a mountain.
$(b)$ Cesium atomic clock is the most accurate clock for the measurement of time.
$(c)$ To round off $15.753$ to three significant figures,we look at the fourth digit,which is $5$. Since the digit following the third significant figure $(7)$ is $5$ followed by non-zero digits $(3)$,we round up the third digit. Thus,$15.753$ becomes $15.8$.
$(b)$ Cesium atomic clock is the most accurate clock for the measurement of time.
$(c)$ To round off $15.753$ to three significant figures,we look at the fourth digit,which is $5$. Since the digit following the third significant figure $(7)$ is $5$ followed by non-zero digits $(3)$,we round up the third digit. Thus,$15.753$ becomes $15.8$.
Explore More
Similar Questions
The unit of length convenient on the atomic scale is known as an $\mathring{A}$ and is denoted by $\mathring{A}: 1 \mathring{A} = 10^{-10} \, m$. The size of a hydrogen atom is about $0.5 \mathring{A}$. What is the total atomic volume in $m^{3}$ of a mole of hydrogen atoms?
Medium
View SolutionIdentify the incorrect statement among the following.
$0.1 \, Pa = \dots \, Nm^{-2} = \dots \, \text{dyne} \, cm^{-2}$.
Easy
View Solution$Pascal-Second$ has the dimension of:
Medium
View SolutionMatch List-$I$ with List-$II$:
List-$I$ List-$II$ $(A)$ Angular Impulse $(I) [M^0 L^2 T^{-2}]$ $(B)$ Latent Heat $(II) [M L^2 T^{-3} A^{-1}]$ $(C)$ Electrical resistivity $(III) [M L^2 T^{-1}]$ $(D)$ Electromotive force $(IV) [M L^3 T^{-3} A^{-2}]$
Choose the correct answer from the options given below:
| List-$I$ | List-$II$ |
| $(A)$ Angular Impulse | $(I) [M^0 L^2 T^{-2}]$ |
| $(B)$ Latent Heat | $(II) [M L^2 T^{-3} A^{-1}]$ |
| $(C)$ Electrical resistivity | $(III) [M L^2 T^{-1}]$ |
| $(D)$ Electromotive force | $(IV) [M L^3 T^{-3} A^{-2}]$ |
Choose the correct answer from the options given below:
Vedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo