Teaching UP TGT Mock Test Series 2025 General Science Chemistry Radioactivity

T1/2 of a radioactive element is 60 minutes. The quantity left after 3 hours will be -

1
17.5% 
2
12.5% 
3
25% 
4
50% 
Share: WhatsApp Telegram X

Sponsored

hivanix.in

Visit

This quiz is brought to you by hivanix.in

🌐 Web App Development

Other Tools: chatwiz.hivanix.in mmspace.hivanix.in unogame.hivanix.in

Quick Navigation

Home

Subjects

Chapters