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CBSE - XII Science - Physics - Nuclei
what are ghost particles please answer how is that not able to interact with other subatomic particles ..?is that faster than photons?
Asked by mohapatraswetalina88
21st April 2024,
12:18 PM
CBSE - XII Science - Physics - Nuclei
the atomic masses of two different nuclei are 3 and 81 then the ratio of their radius r
Asked by akashjyani705
6th March 2022,
4:39 PM
CBSE - XII Science - Physics - Nuclei
WHAT ARE ISOTONES AND ISOTOPES CORRECT DEFINITION?
Asked by sharonashoksp
27th June 2021,
2:44 PM
CBSE - XII Science - Physics - Nuclei
Nuclear density of hydrogen is 2.3x1017 kg/m3. Given A = 56 for iron, find its nuclear density
Asked by gaurish6247
7th April 2021,
5:16 PM
CBSE - XII Science - Physics - Nuclei
claculate the energy equivalent of 1 g of substance.
Asked by prerna.naga
9th May 2019,
8:51 AM
CBSE - XII Science - Physics - Nuclei
In scattering experiment, find the distance of closest approach, if a 6 MeV alpha particle is used?
Asked by kumarisakshi0209
17th March 2019,
2:54 PM
CBSE - XII Science - Physics - Nuclei
A neutron collide with hydrogen atom then what will happen
Asked by Amandeepsinghbedi26
26th September 2018,
1:52 PM
CBSE - XII Science - Physics - Nuclei
how to calculate the value of 70raise to power 1/3?
Asked by vasturushi
30th October 2017,
8:47 PM
CBSE - XII Science - Physics - Nuclei
How to compare the nuclear density of different elements if mass number and atomic number are given?
Asked by poojakamde3
8th October 2017,
11:04 AM
CBSE - XII Science - Physics - Nuclei
if circle is a dimensional figure how can angular velocity and angular accelearation travel in the z direction of the 3 dimensional graph ?
Asked by Christus
9th June 2017,
4:27 PM
CBSE - XII Science - Physics - Nuclei
At time t = 0, 
nuclei of decay constant 
nuclei of decay constant 
are mixed. The decay rate of the mixture is :
(A) 
(B) 
(C) 
nuclei of decay constant nuclei of decay constant are mixed. The decay rate of the mixture is :
Asked by yugibo
13th April 2016,
9:27 PM
CBSE - XII Science - Physics - Nuclei
why does the binding energy per nucleon decreases with increase in mass number of heavy nuclei like U234?
Asked by vinitapahel123
9th December 2015,
6:08 PM
CBSE - XII Science - Physics - Nuclei
What will be the ratio of radii of two nuclei of mass number A1 and A2?
Asked by Topperlearning User
28th May 2015,
10:45 AM
CBSE - XII Science - Physics - Nuclei
If the nucleous of a nucleus are separated apart from each other, the sum of masses of all these nucleons is larger than the mass of the nucleus. Where does this mass difference come from ? Calculate the energy released if 238U nucleus emits an α particle [Given : Atomic mass of 238U= 238.0580 u Atomic mass of 234Th = 234.04363 u Atomic mass of α particle = 4.00260 u 1u = 931 MeV]
Asked by Topperlearning User
28th May 2015,
10:44 AM
CBSE - XII Science - Physics - Nuclei
Draw the curve showing variation of binding energy/nucleon with mass number of different nuclei. Briefly state how nuclear fusion and nuclear fission can be explained on the basis of this graph.
Asked by Topperlearning User
28th May 2015,
10:38 AM
CBSE - XII Science - Physics - Nuclei
What do you mean by packing fraction?
Asked by Topperlearning User
28th May 2015,
10:20 AM
CBSE - XII Science - Physics - Nuclei
What are Isotones?
Asked by Topperlearning User
28th May 2015,
10:15 AM
CBSE - XII Science - Physics - Nuclei
What do you mean by isotopes?
Asked by Topperlearning User
28th May 2015,
10:06 AM
CBSE - XII Science - Physics - Nuclei
What do you mean by nuclear size?
Asked by Topperlearning User
28th May 2015,
9:53 AM
CBSE - XII Science - Physics - Nuclei
What is meant by Atomic Nucleus?
Asked by Topperlearning User
28th May 2015,
9:51 AM
CBSE - XII Science - Physics - Nuclei
(i) What characteristic property of nuclear force explains the constancy of binding energy per nucleion (BE/A) in the range of mass number 'A' lying 30
Asked by Topperlearning User
28th May 2015,
9:47 AM
CBSE - XII Science - Physics - Nuclei
18. A given number of atoms No of a radioactive element with a half life T is uniformly distributed in the blood stream of a
(i) normal person A having total volume V of blood in the body
(ii) person B in need of blood transfusion having a volume V′ of blood in the body.
The number of radioactive atoms per unit volume in the blood streams of the two persons after a time nT are found to be N1 and N2.
Prove mathematically that the additional volume of blood that needs to be transfused in the body of person B equals ( N2− N1/N2 ) V
18. A given number of atoms No of a radioactive element with a half life T is uniformly distributed in the blood stream of a
(i) normal person A having total volume V of blood in the body
(ii) person B in need of blood transfusion having a volume V′ of blood in the body.
The number of radioactive atoms per unit volume in the blood streams of the two persons after a time nT are found to be N1 and N2.
Prove mathematically that the additional volume of blood that needs to be transfused in the body of person B equals ( N2− N1/N2 ) V
Asked by Malavika Umesh
13th February 2015,
12:13 AM
CBSE - XII Science - Physics - Nuclei
sir give me all the derivation of chapter atoms and nuclie that in CBSE board
Asked by ssaurabh534
5th January 2015,
12:20 PM
CBSE - XII Science - Physics - Nuclei
Is the rest mass of a proton exactly equal to the rest mass of a neutron?
Asked by Topperlearning User
4th June 2014,
1:23 PM
CBSE - XII Science - Physics - Nuclei
The isotopes 8O16 has 8 protons, 8 neutrons and 8 electrons, while 4Be8 has 4 protons, 4 neutrons and 4 electrons. Yet the ratio of their atomic masses is not exactly 2. Why?
Asked by Topperlearning User
4th June 2014,
1:23 PM
CBSE - XII Science - Physics - Nuclei
The mass of the nucleus is less than the sum of the masses of the nucleons forming it, why?
Asked by Topperlearning User
4th June 2014,
1:23 PM
CBSE - XII Science - Physics - Nuclei
What are Isobars?
Asked by Topperlearning User
4th June 2014,
1:23 PM
CBSE - XII Science - Physics - Nuclei
What is nuclear density?
Asked by Topperlearning User
4th June 2014,
1:23 PM
