Wiredfaculty Logo

For Daily Free Study Material Join wiredfaculty Whatsapp Group | Download Android App | Ncert Book Download

Good Morning
09:13 am

Sponsor Area

Add Your Answer

Sponsor Area

Question is

Half-lives of two radioactive substances A and B are respectively 20 minutes and 40 minutes. Initially the samples of A and B have equal number of nuclei. After 80 minutes the ratio of remaining numbers of A and B nuclei is
  • 1 : 16 
  • 4 : 1
  • 1 : 4

  • 1 : 1

Mock Test Series

Sponsor Area

Sponsor Area

NCERT Book Store

NCERT Sample Papers

Entrance Exams Preparation