UrbanPro

Take Class 11 Tuition from the Best Tutors

  • Affordable fees
  • 1-1 or Group class
  • Flexible Timings
  • Verified Tutors

Search in

The radius of a sphere is measured as (2.1 ± 0.5) cm calculate its surface area with error limits.

Asked by Last Modified  

Follow 1
Answer

Please enter your answer

Trainer

Surface area S=4πr2=4π(2.1)2=55.4cm2 S=4πr2=4π(2.1)2=55.4cm2 ⇒ΔS/S⇒ΔS/S=2Δr/r=2Δrr→ΔS=2Δr/r→ΔS=2Δr/rSS ⇒ΔS=2×0.5×55.42.1⇒ΔS=2×0.5×55.42.1=26.4cm2=26.4cm2 Its surface...
read more
Surface area S=4πr2=4π(2.1)2=55.4cm2       
S=4πr2=4π(2.1)2=55.4cm2
 
ΔS/S⇒ΔS/S=2Δr/r=2ΔrrΔS=2Δr/r→ΔS=2Δr/rSS
 
ΔS=2×0.5×55.42.1⇒ΔS=2×0.5×55.42.1=26.4cm2=26.4cm2
 
Its surface area with error ⇒S=55.4±26.4cm2
read less
Comments

Related Questions

A shell of mass 0.020kg is fired by a gun of mass 100kg. If the muzzle speed of the shell is 80m/s, what is the recoil speed of the gun?
Mass of the gun, M = 100 kg Mass of the shell, m = 0.020 kg Muzzle speed of the shell, v = 80 m/s Recoil speed of the gun = V Both the gun and the shell are at rest initially. Initial momentum of the system...
Rasneet
0 0
5

Yes, I am available.I have 1 year experience in this field.You can contact me if you need me.
Balakrishnasingh
0 0
8
Sameer went on his bike from Delhi to Gurgaon at a speed of 60km/hr and came back at a speed of 40km/hr. What is his average speed for entire journey?
To find the average speed, you need to know the formula of average speed. The avg speed 0= 2 d / (t1+ t2) = 2 v1.v2/(V1 + V2). Just substitute the value.
Gowre

Why is only the speed of light constant in all frames of reference?

It is a fundamental postulate of Einstein's particular theory of relativity. We found no evidence opposing this until now. It is confirmed later in many experiments.
Souradeep

Now ask question in any of the 1000+ Categories, and get Answers from Tutors and Trainers on UrbanPro.com

Ask a Question

Related Lessons

Cross product of vectors
Vector or Cross product of vectors It is defined as product of magnitude of the vectors and sine of the angle between them it is a vector quantity. For two vectors A and B A × B = |A||B| SinTn...

NEET 2018 Solutions
This video gives explanatory solution to NEET 2018 Q.1 For physics section

Train Your Mind
Hi Dear Students, The main problem with every student is that they don't study regularly or the study time is not fix. Sometimes they study 1 or 2 hour, sometimes that don't. Their problem is they don't...

What is the difference between centrifugal force and centripetal force ?
For any body to move in a circular path , there exist a force without which it cannot move in circular path. Just imagine you are holding a ball tied with rope and you are rotating it in a circular path. You...

Arun Pratap Singh

0 0
0

The resisting force- friction
https://youtu.be/XSnXG49QXO4

Recommended Articles

With the mushrooming of international and private schools, it may seem that the education system of India is healthy. In reality, only 29% of children are sent to the private schools, while the remaining head for government or state funded education. So, to check the reality of Indian education system it is better to look...

Read full article >

Learning for every child starts from a very young age. While the formal methods include school curriculums and private lessons, the informal methods include dancing, music, drawing, and various fun-filling activities. Playing games and practising these types of activities helps the children get out of boredom and...

Read full article >

While schools provide formal education to the children, the home is where they start learning about things informally. Parents think that schools will take the initiative to educate their children. Well, this is partially true, as parents also play an essential role in bringing up their child. For the development of particular...

Read full article >

Once over with the tenth board exams, a heavy percentage of students remain confused between the three academic streams they have to choose from - science, arts or commerce. Some are confident enough to take a call on this much in advance. But there is no worry if as a student you take time to make choice between - science,...

Read full article >

Looking for Class 11 Tuition ?

Learn from the Best Tutors on UrbanPro

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you
X

Looking for Class 11 Tuition Classes?

The best tutors for Class 11 Tuition Classes are on UrbanPro

  • Select the best Tutor
  • Book & Attend a Free Demo
  • Pay and start Learning

Take Class 11 Tuition with the Best Tutors

The best Tutors for Class 11 Tuition Classes are on UrbanPro

This website uses cookies

We use cookies to improve user experience. Choose what cookies you allow us to use. You can read more about our Cookie Policy in our Privacy Policy

Accept All
Decline All

UrbanPro.com is India's largest network of most trusted tutors and institutes. Over 55 lakh students rely on UrbanPro.com, to fulfill their learning requirements across 1,000+ categories. Using UrbanPro.com, parents, and students can compare multiple Tutors and Institutes and choose the one that best suits their requirements. More than 7.5 lakh verified Tutors and Institutes are helping millions of students every day and growing their tutoring business on UrbanPro.com. Whether you are looking for a tutor to learn mathematics, a German language trainer to brush up your German language skills or an institute to upgrade your IT skills, we have got the best selection of Tutors and Training Institutes for you. Read more