Physics, asked by jeyakumar1745, 10 months ago

The radius of sphere is 21+-0.5 then find the surface area

Answers

Answered by provati68

We know Sufrace Area of sphere (S) = 4π r2 = 4 × 227 (2.1)2 = 55.44 cm2 And Δ S = 8π r Δ r = 8 × 227 × 2.1 × 0.5 = 26.4 cm2 Therefore, The Ans is 55.44 ± 26.4 cm2.

Previous Question

Next Question

Similar questions

English, 5 months ago

(9) You notice a weakness in a person. Your response : Value reflected :...

Social Sciences, 5 months ago

Which statement/s is/are correct about the impact of British Land tax system? (a) A new class of Zamindars who exploited the farmers was created. (b) The money lenders became very weak. (c) The farmers who were subjected to the exploitation of the Zamindars became landless. (d) The agriculture sector became commercialized. (1) (a), (b) and (d) (2) (b), (c) and (d) (3) (a), (b) and (c) (4) (a),...

Computer Science, 5 months ago

2 Gardening is essential for sustaining environment on the Earth and it is very Important and interesting hobby. Every child likes to participate in this field. You are required to write all the steps involved in growing a plant in simple English and then present it in flow chart diagram (4 marks)...

Chemistry, 10 months ago

21.(a) Identify the compound of calcium which is yellowish white powder is used in disinfecting drinking water. (b) write chemical name and formula for the above compound. (c) write chemical equation involved in manufacturing of this compound. (d) write two other uses of this compound. 22. (a) write balanced chemical equation for the chlor alkaly process. (b) why is it...

Science, 10 months ago

In severe cold weather, Mohan’s family burnt wood in the room during the night keeping the windows closed. After some time, they felt suffocated. Mohan immediately opened the windows and got relief.What did actually happen?

Math, 1 year ago

How do you evaluate the limit √x+4−2x as x approaches 0?

Math, 1 year ago

20 सेकंदाचे 20 मिनीटाशी गुणोत्तर किती? 1: 60 1: 6 1: 1 2: 60...

Math, 1 year ago

शितल आपल्या मासीक पगाराच्या 10% रक्कम कपडयांवर खर्च करते. शिल्लक रक्कमेपैकी 10% रक्कम प्रवासावर खर्च करते तिचा पगार 6000 रु. आहे तर तिची बचत किती रुपये आहे? 4800 5000 4680 4860...