MCQ
Source of Sun's energy is
  • A
    Burning of hydrogen
  • B
    Fission reactions involving hydrogen
  • Fusion reactions involving hydrogen
  • D
    Some other source

Answer

Correct option: C.
Fusion reactions involving hydrogen
Source of Sun's energy is fusion reactions involving hydrogen.

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

Two rods (one semi-circular and other straight) of same material and of same cross-sectional area are joined as shown in the figure. The points $A$ and $B$ are maintained at different temperature. The ratio of the heat transferred through a cross-section of a semicircular rod to the heat transferred through a cross section of the straight rod in a given time is
Image
Which one of the relation is correct between time period and number of orbits while an electron is revolving in a orbit
A ball $P$ is dropped vertically and another ball $Q$ is thrown horizontally with the same velocities from the same height and at the same time. If air resistance is neglected, then
Number of base $Sl$ units is
A body of mass $5 \mathrm{~kg}$ explodes at rest into three fragments with masses in the ratio $1: 1: 3$. The fragments with equal masses fly in mutually perpendicular directions with speeds of $21 \mathrm{~m} / \mathrm{s}$. The velocity of the heaviest fragment will be
Energy required to remove an electron from aluminium surface is $4.2 \mathrm{eV}$. If light of wavelength $2000 A$ falls on the surface, the velocity of the fastest electron ejected from the surface will be
A voltmeter has a range $0-V$ with a series resistance $R$. With a series resistance $2R$, the range is $0-V'$. The correct relation between $V$ and $V'$ is
A current carrying circular loop is freely suspended by a long thread. The plane of the loop will point in the direction
Two resistances $R_1$ and $R_2$ when connected in series and parallel with $120 V$ line, power consumed will be $25\  W$ and $100\  W$ respectively. Then the ratio of power consumed by $R_1$ to that consumed by $R_2$ will be
In a circuit, the value of the alternating current is measured by hot wire ammeter as 10 ampere. Its peak value will be