MCQ
Energy in the sun is generated mainly by
  • A
    Fusion of radioactive material
  • B
    Fission of helium atoms
  • C
    Chemical reaction
  • Fusion of hydrogen atoms

Answer

Correct option: D.
Fusion of hydrogen atoms
d
(d)Fusion is the main process of energy production in the sun.

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

Similar questions

Density of substance at $0°C$ is $10\, gm/cc$ and at $100°C,$ its density is $9.7\, gm/cc$. The coefficient of linear expansion of the substance will be
A person sees his virtual image by holding a mirror very close to the face. When he moves the mirror away from his face, the image becomes inverted. What type of mirror he is using
The maximum illumination on a screen at a distance of $2\, m$ from a lamp is $25\, lux.$ The value of total luminous flux emitted by the lamp is
The moment of inertia of a body does not depend on
Blocks shown in figure moves with constant velocity $10 \,m / s$ towards right. All surfaces in contact are rough. The friction force applied by ground on block $B$ is ........ $N$
An $NPN$ transistor is used in common emitter configuration as an amplifier with $1\,k\Omega $ load resistance. Signal voltage of $10\,mV$ is applied across the base emitter. This produces a $3\,mA$ change in the collector current and $15\,\mu A$ change in the base current of the amplifier. The input resistance and voltage gain are
If $7\, gm N _{2}$ is mixed with $20\, gm$ $Ar$, there $C _{ p } / C _{ v }$ of mixture will be
The maximum velocity of electrons emitted from a metal surface is $V$. When frequency of light falling on it is $f$. The maximum velocity when frequency becomes $4f$ is
A pulse or a wave train travels along a stretched string and reaches the fixed end of the string. It will be reflected back with
Three identical rods $AB$, $CD$ and $PQ$ are joined as shown. $P$ and $Q$ are mid points of $AB$ and $CD$ respectively. Ends $A, B, C$ and $D$ are maintained at $0^o C, 100^o C, 30^o C$ and $60^o C$ respectively. The direction of heat flow in $PQ$ is