Question
Nuclear fission was discovered by

Answer

(a)

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

Shown in the figure is a hollow icecream cone (it is open at the top). If its mass is $M,$ radius of its top, $R$ and height, $H$, then its moment of inertia about its axis is
A block of rectangular size of mass $m$ and area of cross-section $A$, floats in a liquid of density $\rho$. If we give a small vertical displacement from equilibrium, it undergoes $S H M$ with time period $T$, then
In case of hydrogen and oxygen at $N.T.P.$, which of the following quantities is $/$ are the same?
One metallic sphere $A$ is given positive charge whereas another identical metallic sphere $B$ of exactly same mass as of $A$ is given equal amount of negative charge. Then
The total kinetic energy of translatory motion of all the molecules of $5$ litres of nitrogen exerting a pressure $P$ is $3000 \,\,J$.
Mercury does not wet glass, wood or iron because
A spaceship of speed $v_0$ travelling along $+ y$ axis suddenly shots out one fourth of its part with speed $2v_0$ along $+ x$ -axis. $xy$ axes are fixed with respect to ground. The velocity of the remaining part is
A box weighs $196 \;\mathrm{N}$ on a spring balance at the north pole. Its weight recorded on the same balance if it is shifted to the equator is close to ....... $N$

(Take $\mathrm{g}=10\; \mathrm{ms}^{-2}$ at the north pole and the radius of the earth $=6400\; \mathrm{km}$)

A galvanometer of resistance, $G,$ is connected in a circuit. Now a resistance $R$ is connected in series of galvanometer. To keep the main current in the circuit unchanged, the resistance to be put in parallel with the series combination of $G$ and $R$ is
Pressure at the bottom of a tank of water is $3P$, where $P$ is atmospheric pressure. If water is drawn out till the level of water is lowered by one fifth, then the pressure at the bottom of the tank is