MCQ
Energy generation in stars is mainly due to
- AChemical reactions
- BFission of heavy nuclei
- ✓Fusion of light nuclei
- DFusion of heavy nuclei
✓
Answer
Correct option: C.
Fusion of light nuclei
c
(c) Energy of stars is due to the fusion of light hydrogen nuclei into $He$.
(c) Energy of stars is due to the fusion of light hydrogen nuclei into $He$.
In this process much energy is released.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
A cubical vessel has opaque walls. An observer (dark circle in the figure below) is located, such that she can see only the wall $C D$, but not the bottom. Nearly to .........$cm$ height should water be poured, so that she can see an object placed at the bottom at a distance of $10 \,cm$ from the corner $C$ ? Refractive index of water is $1.33$.
→The first overtone of a stretched wire of given length is $320 Hz$. The first harmonic is .... $Hz$
→If threshold wavelength for sodium is $6800Å$ then the work function will be ............. $eV$
→A metal ball of mass $2 \,kg$ moving with a velocity of $36 \,km/h$ has an head on collision with a stationary ball of mass $3 \,kg$. If after the collision, the two balls move together, the loss in kinetic energy due to collision is ........ $J$
→An electric kettle takes $4\, A$ current at $220\,V.$ How much time will it take to boil $1\,\, kg$ of water circuits are consequences of from temperature $20\,^o C\, ?$ The temperature of $(a)$ conservation of energy and electric charge boiling water is $100\,^o C.$ ............... $min$
→In the graph shown in figure, which quantity associated with projectile motion is plotted along $y$-axis?
→A proton, an electron, and a Helium nucleus, have the same energy. They are in circular orbitals in a plane due to magnetic field perpendicular to the plane. Let $r_p, r_e$ and $r_{He}$ be their respective radii, then
→The frequency of a tunning fork is $384$ per second and velocity of sound in air is $352 m/s$. How far the sound has traversed while fork completes $36$ vibration .... $m$
→The resistance of an ideal voltmeter is
A capacitor of capacitance $C$ is charged with the help of a $200 \,V$ battery. It is then discharged through a small coil of resistance wire embedded in a thermally insulated block of specific heat capacity $2.5 \times 10^2 \,J / kg$ and mass $0.1 \,kg$. If the temperature of the block rises by $0.4 \,K$, the value of $C$ is
→