Which of the following statement is wrong?A. Nuclear radius is often expressed in fremi `(1F = 10^(-15)m)`B. Nuclear forces are short range and not strong attractive forcesC. Nuclear forces are about `10^(21)` times stronger than coulombic forcesD. Stabililty of nucleus is governed by inverse square law.

Which of the following statement is wrong?A. Nuclear radius is often e

1.	Which of the following statement is wrong?A. Nuclear radius is often expressed in fremi `(1F = 10^(-15)m)`B. Nuclear forces are short range and not strong attractive forcesC. Nuclear forces are about `10^(21)` times stronger than coulombic forcesD. Stabililty of nucleus is governed by inverse square law.
Answer» Correct Answer - `(d)` Stablilty of nuclieus is governed by nuclear forces and not by inverse square law i.e, coulombic forces of attractions.

Discussion

No Comment Found

Related InterviewSolutions

Calculate the equivalent weight of each oxidant and reducant in: (a) `FeSO_(4) + KCl_(3) rarr KCl + Fe_(2) (SO_(4))_(3)` (b) `Na_(2) SO_(3) + Na_(2)CrO_(4) rarr Na_(2) CrO_(4) rarr Na_(2) SO_(4) + Cr(OH)_(3)` (c) `Fe_(3)O_(4) + KMnO_(4) rarr Fe_(2) O_(3) + MnO_(2)` (d) `KI + K_(2) Cr_(2) O_(7) rarr Cr^(3+) + 3I_(2)` (e) `Mn^(4+) rarr Mn^(2+)` (f) `NO_(3)^(-) rarr N_(2)` (g) `N_(2) rarr NH_(3)` (h) `Na_(2) S_(2) O_(3) + I_(2) rarr Na_(2) S_(4) O_(6) + 2NaI` (i) `FeC_(2)O_(4) rarr Fe^(3+) + CO_(2)`
In the reaction `Al + Fe_(3)O_(4) rarr Al_(2) O_(3) + Fe` (a) Which element is oxidized and which is reduced? (b) Total no. of elecetros transferred during the change.
If `m_(p)` and `m_(n)` are masses of proton and neutron respectively and `M_(1)` and `M_(2)` are masses of `._(10)MeNe^(20)` and `._(20)Ca^(40)` nucleus repectively, then:A. `M_(2) = 2M_(1)`B. `M_(2) lt 2M_(1)`C. `M_(2) gt 2M_(1)`D. `M_(1) lt 10(m_(n) + m_(p))`
The intergrated rate equation is `Rt = log, C_(0) - log C_(t)`. The straight line graph is obtained by plotting:A. `t` vs log `C_(t)`B. `(1)/(t)` vs log `C_(t)`C. `t` vs `C_(t)`D. `(1)/(t)` vs log `(1)/(C_(t))`
The half life of `.^(215)At` is `100mu s`. The time taken for the radioacticity of `.^(215)At` to decay to `1//16^(th)` of its initial value is:A. `400mu s`B. `6.3mu s`C. `40mu s`D. `300mu s`
The half life period of `._(53)I^(125)` is 60 days. What % of radioactivity would be present after 240 days.
The disntergration rate of a certain radioactive sample at any instant is `4750 dp m`. Five minute later, the rate becomes `2700 dp m` Calculate half-line of sample.
Two elements `P` and `Q` have half-line of `10` and `15` minutes repectively. Freshly preapared sample of mixuture containing equal number of atoms is allowed to decay for `30` minutes. The ratio of number of atoms of `P` and `Q` in left in mixture is:A. `0.5`B. `2.0`C. `3.0`D. `4.0`
`KMnO_(4)` oxidises `NO_(2)^(-)` to `NO_(3)^(-)` in basic medium. How many moles of `NO_(2)^(-)` are oxidised by `1 mol` of `KMnO_(4)`?
A freshly prepared radioactive source to half-life `2 hr`, emits radiatiosn of intensity which is 64 times the permissible safe level. The minumum time after which it would be possibleto work safely with the source is:A. `6 hr`B. `12 hr`C. `24 hr`D. `128 hr`

Discussion

No Comment Found

Related InterviewSolutions

Reply to Comment