Download App

Nuclei — Physics STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 SciencePhysicsNuclei2 Marks
Question
Which rules are followed in nuclear reactions?
✓

Answer

The following rules are followed in nuclear reactions :
(i) Charge is conserved.
(ii) Linear and angular momentum are conserved.
(iii) The sum of mass and energy remains conserved.
(iv) Nucleon is conserved.

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

More "2 Marks Questions" from Nuclei→Nuclei — all question types→Physics STD 12 Science question papers→Gujarat Board STD 12 Science question papers→Gujarat Board question paper generator→

Similar questions

A parallel plate capacitor of capacitance C is charged to a potential V. It is then connected to another uncharged capacitor having the same capacitance. Find out the ratio of the energy stored in the combined system to that stored initially in the single capacitor.
→
Obtain the de Broglie wavelength of a neutron of kinetic energy 150 eV . As you have seen in Exercise 11.31, an electron beam of this energy is suitable for crystal diffraction experiments. Would a neutron beam of the same energy be equally suitable? Explain. $( \left.\mathrm{m}_{\mathrm{n}}=1.675 \times 10^{-27} \mathrm{~kg}\right)$.
→
The internal resistance of an accumulator battery of emf 6V is $10\Omega$ when it is fully discharged. As the battery gets charged up, its internal resistance decreases to $1\Omega.$
The battery in its completely discharged state is connected to a charger that maintains a constant potential difference of 9V. Find the current through the battery (a) just after the connections are made and (b) after a long time when it is completely charged.
→
A force F facts on a point charge placed on the axis of an electric dipole. If the distance of a point charge from the dipole is doubled, what will be the force on it? Explain the reason also.
→
What is the width of the depletion layer of a P-N junction when it is (i) forward biased (ii) reverse biased?
→
A spectroscopic instrument can resolve two nearby wavelengths $\lambda$ and $\lambda+\Delta\lambda$ if $\frac{\lambda}{\Delta\lambda}$ is smaller than 8000. This is used to study the spectral lines of the Balmer series of hydrogen. Approximately how many lines will be resolved by the instrument?
→
Derive the formula of torque for electric dipole placed in uniform electric field.$\#\#\#$ Explain behaviour of a dipole in a uniform electric field.
→
By explaining the (Electric) current density, derive Ohm's law in vector form.
→
Two beams, one of red light and the other of blue light, of the same intensity are incident on a metallic surface to emit photoelectrons. Which one of the two beams emits electrons of greater kinetic energy?
→
Due to diffraction effects, the beam of ray gets focused as a spot of radius of approximately what value?
→