UrbanPro

Take Class 12 Tuition from the Best Tutors

  • Affordable fees
  • 1-1 or Group class
  • Flexible Timings
  • Verified Tutors

Search in

The half life of a radioactive element M is 30 min. How many atoms of A will be left after 2 h if there is 64 atoms of M in the beginning? Options: A. 4 , B. 64, C. 0, D. Can't say.

Asked by Last Modified  

25 Answers

Follow 0
Answer

Please enter your answer

Tutor

A 4
Comments

Brain Trainer

Answer is A. 4
Comments

it will be 8 . or D.
Comments

Get mentored by science olympiad topper.

Yeah a.4 is correct its eqaul to 4 half life's.so 64/2^4 I.e 64/16 is equal to 4
Comments

Math Magician

A
Comments

Tutor

4
Comments

M.SC(MATHS),M.ED, (MBA)

4
Comments

Biotech the future World

4
Comments

Btech (Ece),mtech

4
Comments

A.4
Comments

View 23 more Answers

Related Questions

how one can score good marks in every subject? how one can make subject easy
Hi dear, To make your study easy, one best way is to prepare notes of the subject u r studying. Instead of making elaborative notes prepare key points of the topics while studying and for processes or...
Sushmitha
which is the best tuition of 11th science CBSE in pune
Hiring online tuition is best option for you. Main thing is what is your understanding level .For more detail contact me.
Savita
A and B toss a coin alternately till one of them gets a head and wins the game. if A starts first , find the probability that B will win the game.
U.k. Akshay posted a question in Class XI-XII Tuition (PUC) Question: A and B toss a coin alternately till one of them gets a head and wins the game. if A starts first , find the probability that B...
Kumar Upendra Akshay
2 0
6
identify the region |z-2|<8&|z-1|<|z-5|
first we have to change inequality sign to equality sign.then |z-2|=8 represent a circle whose center lies on real axis in argand plane at (2,0) with radius 8.in complex no. |z-q| represent distance b/w...
Sandeep
2 0
6

Now ask question in any of the 1000+ Categories, and get Answers from Tutors and Trainers on UrbanPro.com

Ask a Question

Related Lessons

7 -WAYS THAT CAN IMPROVE THE LIFE OF A STUDENT
1. Classroom attentionSometimes #students loose their concentration in to the #classroom and not grasp the topic properly and hence loose their interest in to subject (s). As a result bad score bad performance....
D

Dr

1 0
0

GST
GST refers to Goods and Services Tax. GST replaced then called sales tax and service taxes. GST paid on purchases shall be recorded as an asset which shall be offset with the GST collected (liability...

Introduction To Accounting: Part 17: Dual Aspect Concept
There are always two aspects of a Business Transaction. Examples: Purchase of Machinery for Rs 50,000. The two aspects in this transaction are: Incoming of Machinery Outflow of...


Language acquisition is no puberty.
Articulation & the movement of articulators is corollary, not causation. http://www.sbwresearch.com/single-post/2016/08/09/Articulation-the-movement-of-articulators-is-corollary-not-causation ...

Recommended Articles

Radhe Shyam is a highly skilled accounts and finance trainer with 8 years of experience in teaching. Accounting is challenging for many students and that’s where Radhe Shyam’s expertise comes into play. He helps his students not only in understanding the subject but also advises them on how to overcome the fear of accounts...

Read full article >

Sandhya is a proactive educationalist. She conducts classes for CBSE, PUC, ICSE, I.B. and IGCSE. Having a 6-year experience in teaching, she connects with her students and provides tutoring as per their understanding. She mentors her students personally and strives them to achieve their goals with ease. Being an enthusiastic...

Read full article >

Mohammad Wazid is a certified professional tutor for class 11 students. He has 6 years of teaching experience which he couples with an energetic attitude and a vision of making any subject easy for the students. Over the years he has developed skills with a capability of understanding the requirements of the students. This...

Read full article >

Swati is a renowned Hindi tutor with 7 years of experience in teaching. She conducts classes for various students ranging from class 6- class 12 and also BA students. Having pursued her education at Madras University where she did her Masters in Hindi, Swati knows her way around students. She believes that each student...

Read full article >

Looking for Class 12 Tuition ?

Learn from the Best Tutors on UrbanPro

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you
X

Looking for Class 12 Tuition Classes?

The best tutors for Class 12 Tuition Classes are on UrbanPro

  • Select the best Tutor
  • Book & Attend a Free Demo
  • Pay and start Learning

Take Class 12 Tuition with the Best Tutors

The best Tutors for Class 12 Tuition Classes are on UrbanPro

This website uses cookies

We use cookies to improve user experience. Choose what cookies you allow us to use. You can read more about our Cookie Policy in our Privacy Policy

Accept All
Decline All

UrbanPro.com is India's largest network of most trusted tutors and institutes. Over 55 lakh students rely on UrbanPro.com, to fulfill their learning requirements across 1,000+ categories. Using UrbanPro.com, parents, and students can compare multiple Tutors and Institutes and choose the one that best suits their requirements. More than 7.5 lakh verified Tutors and Institutes are helping millions of students every day and growing their tutoring business on UrbanPro.com. Whether you are looking for a tutor to learn mathematics, a German language trainer to brush up your German language skills or an institute to upgrade your IT skills, we have got the best selection of Tutors and Training Institutes for you. Read more