MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Law of Radioactivity

A certain nuc...

Question

A certain nuclide has a half-life period of 30 minutes. If a sample containing 600 atoms is allowed to decay for 90 minutes, how many atoms will remain

A

200 atoms

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

450 atoms

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C

75 atoms

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

D

500 atoms

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is C 75 atoms
$n - \frac{90}{30} - 3 \Rightarrow N - \frac{600}{2^{3}} - 75 a t o m s$ .

Suggest Corrections

thumbs-up

0

Similar questions

Q. A certain nuclei has a half life period of 30 min. If a sample containing 600 atoms is allowed to decay for 90 min, how many atoms will remain?

Q. A radio active sample contains

600

radio active atoms. Its half life period is

30

minutes. The no. of radio active atoms remaining, if the decay occurs for

90

Q. A radioactive sample has initial activity of

28 d p m

30

minutes later its activity

14 d p m

How many atoms of nuclide were present initially?

Q. Two elements

P

Q

have half-lives of 10 and 15 minute respectively. A freshly prepared sample of a mixture containing the equal number of atoms is allowed to decay for 30 minutes.

The ratio of the number of atoms of

P

Q

left in the mixture is:

Q. A radioactive sample has a half-life of

10

64

nuclei are contained in the sample the number of nuclei that would decay after

50

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Law of Radioactivity

CHEMISTRY

Watch in App

explore_more_icon

Explore more

Law of Radioactivity

Standard XII Chemistry

Join BYJU'S Learning Program

CrossIcon