MTS 21 25-07-2022 Shift 3


Question 1

A hollow spherical shell is made of a metal of density 2.5 g/cm’. If the external and the internal radii of the given sphere
are 35 cm and 14 cm, respectively, find the mass of the shell.

'एक खौखला गौलाकार सैल 2.5 g/cm3 घनत्व वाली धातु से बना है। यदि दिए गए सैल की वाहय और आंतरिक त्रिज्याएं क्रमशः 35 cm
और 14 cm हैं, तो सैल का द्रव्यमान जात कीजिए।


Options

A

B

C

D


Solution:

Correct Answer:

A


Voulme of hollow spherical shell = 43\frac{4}{3} π\pi (R3-r3){(R^3-r^3)}

R = 35 and r = 14

density of shell = 2.5 g/cm

As we know mass = volume ×\times density

Mass of the shell = 2.5 ×\times 43\frac{4}{3} π\pi (353-143){(35^3-14^3)}

Mass of the shell = 420420 gm

खोखले गोलाकार सेल  का आयतन  = 43\frac{4}{3} π\pi (R3-r3){(R^3-r^3)}

R = 35 and r = 14

सेल  का घनत्व  = 2.5 g/cm

जैसा कि हम जानते है कि द्रव्यमान = घनत्व×\times आयतन

सेल का द्रव्यमान  = 2.5 ×\times 43\frac{4}{3} π\pi (353-143){(35^3-14^3)}

सेल का द्रव्यमान = 420420 gm

Types of Web Hosting

21-Apr-2023 06:03:43 | BLOG


types of web hosting


Read More

How to choose best web hosting

27-Sep-2022 09:46:18 | BLOG


best hosting


Read More

A2 Hosting Review

27-Sep-2022 09:45:14 | BLOG


a2 hosting


Read More

HostPapa Review

27-Sep-2022 09:44:24 | BLOG


hostpapa


Read More

Dreamhost Review

27-Sep-2022 09:43:44 | BLOG


dreamhost


Read More

Hostgator Review

27-Sep-2022 09:43:02 | BLOG


hostgator


Read More

Hostinger Review

27-Sep-2022 09:42:05 | BLOG


Hostinger


Read More

inMotion Hosting Review

27-Sep-2022 09:41:15 | BLOG


inmotion


Read More