Download App

STD 12 - 13. Nuclei — JEE STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceJEESTD 12 - 13. Nuclei4 Marks
MCQ
In gamma ray emission from a nucleus
  • ✓
    there is no change in the proton number and the neutron number
  • B
    only the neutron number changes
  • C
    only the proton number changes
  • D
    both the neutron number and the proton number change
✓

Answer

Correct option: A.
there is no change in the proton number and the neutron number
a
There is no change in the proton number and the neutron number as the $\gamma$ -emission takes place as a result of excitation or de-excitation of nuclei. $\gamma$ -rays have no charge or mass.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

JEE STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

As shown in the figure, after passing through the medium $1$. The speed of light $v _{2}$ in medium $2$ will be$.....\times 10^{8}\,ms ^{-1}$  $\left(\text { Given } c =3 \times 10^{8} ms ^{-1}\right)$
→
The masses and radii of the earth and moon are ${M_1},\,{R_1}$ and ${M_2},\,{R_2}$ respectively. Their centres are distance d apart. The minimum velocity with which a particle of mass $m$ should be projected from a point midway between their centres so that it escapes to infinity is
→
The change in a vector may occur due to .....
→
A source producing sound of frequency $170 Hz$ is approaching a stationary observer with a velocity $17 \,ms^{-1}$. The apparent change in the wavelength of sound heard by the observer is (speed of sound in air $= 340 \,ms^{-1}$)  ..... $m$
→
A parallel plate capacitor is filled equally (half) with two dielectrics of dielectric constant $\varepsilon_1$ and $\varepsilon_2$, as shown in figures. The distance between the plates is d and area of each plate is A. If capacitance in first configuration and second configuration are $C_1$ and $C_2$ respectively, then $\frac{C_1}{C_2}$ is :
Image
Image
→
A particle is dropped vertically from rest from a height. The time taken by it to fall through successive distances of $1\, m$ each will then be
→
In Young's double slit experiment, one of the slit is wider than other, so that amplitude of the light from one slit is double of that from other slit. If $I_m$ be the maximum intensity, the resultant intensity $I$ when they interfere at phase difference $\phi$ is given by
→
Convergence of concave mirror can be decreased by dipping in
→
Choose the correct statement(s) for hydrogen and deuterium atoms (considering motion of nucleus)
→
A black hole is an object whose gravitational field is so strong that even light cannot escape from it. To what approximate radius would earth $($ mass $= 5 .98 \times \,10^{24}\, kg)$ have to be compressed to be a black hole?
→