Question
One curie is equal to:
✓
Answer
$3.7 \times 10^{10}$ Disintegration$/$ sec.
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
If 64 charged drops of water are mixed to form one big drop, then how many times the value of potential on the big drop will be from the full value?
A parallel plate capacitor is connected to a battery as shown in Fig. Consider two situations:
A: Key K is kept closed and plates of capacitors are moved apart using insulating handle.
B: Key K is opened and plates of capacitors are moved apart using insulating handle. Choose the correct option(s).
A: Key K is kept closed and plates of capacitors are moved apart using insulating handle.
B: Key K is opened and plates of capacitors are moved apart using insulating handle. Choose the correct option(s).
$^{22}Ne$ nucleus, after absorbing energy, decays into two $\alpha-$particles and an unknown nucleus. The unknown nucleus is:
→An electromagnetic wave radiates outwards from a dipole antenna, with $E_0$ as the amplitude of its electric field vector. The electric field $B_0$ which transports significant energy from the source falls off as$:$
→Two concave lenses $L_1$ and $L_2$ are kept in contact with each other. If the space between the two lenses is filled with a material of refractive index $\mu\approx1,$ the magnitude of the focal length of the combination$:$
→The number of turns in an air core solenoid of length $25\ cm$ and radius $4\ cm$ is $100.$ Its self inductance will be.
→$16\ gm$ sample of a radioactive element is taken from Bombay to Delhi in $2$ hour and it was found that $1\ gm$ of the element remained $($undisintegrated$)$. Half life of the element is
→A $\pi^0$ at rest decays into $2\gamma$ rays $\pi^0 \rightarrow \gamma+\gamma .$ Then which of the following can happen
→The vecter term of coulomb's law is :
A cylindrical bar magnet is kept along the axis of a circular coil. If the magnet is rotated about its axis, then(a) A current will be induced in a coil(b) No current will be induced in a coil(c) Only an e.m.f. will be induced in the coil(d) An e.m.f. and a current both will be induced in the coil