LIVE Course for free

Rated by 1 million+ students
Get app now
JEE MAIN 2023
JEE MAIN 2023 TEST SERIES
NEET 2023 TEST SERIES
NEET 2023
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
0 votes
140 views
in Biology by (24.2k points)
closed by
If the size of the nucleus of an atom is compared with a cricket ball, then the radius of the atom is approximately equal to how many kilometres?
1. 0.5
2. 0.005
3. 5
4. 0.05

1 Answer

0 votes
by (24.2k points)
selected by
 
Best answer
Correct Answer - Option 3 : 5

The correct answer is 5.

  • Rutherford’s Nuclear Model of Atom proved that most of the space in atoms is generally empty.
  • This means the size of the Nucleus is very small in comparison to the total size of an Atom.
  • The radius of the atom is about 10–10 m, while that of the nucleus is 10–15 m. 
  • So, if a cricket ball represents a nucleus, then the radius of an atom would be about 5 km.

As we know the Diameter of the cricket ball(nucleus) is 10 cm.

The size of the Nucleus is about 10-15 m, while the size of an atom is 10-10 m.

For 10-15 size of nucleus → 10-10 m size of an atom

For 1 m size of Nucleus → (10-10 / 10-15) m size of an atom

100 cm size of Nucleus → 105 m size of an atom

10 cm size of Nucleus(Cricket ball) → 104 m size of an atom

10 cm size of Nucleus(Cricket ball) → 10 km size of an atom    (as 1 km = 1000 m)

but here the radius is asked in the question 

The radius of an atom, so radius = Diameter/2
                                                    =  10/2 km
Therefore, The radius of the atom is approximately equal to 5 km.

Related questions

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

Categories

...