MCQ
The nuclear radius is of the order of?
- A$10^{-10} \mathrm{m}$
- B$10^{-6} \mathrm{~m}$
- C$10^{-15} \mathrm{~m}$
- ✓$10^{-14} \mathrm{m}$
✓
Answer
Correct option: D.
$10^{-14} \mathrm{m}$
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 wire having mass $m$ and length $1$ can freely slide on a pair or parallel smooth horizontal rails placed in vertical magnetic field $B$. The rails are connected by a capacitor of capacitance $C$. The electric resistance of the rails and the wire is zero. If a constant force $F$ acts on the wire as shown in the figure. Then, the acceleration of the wire can be given as
→The focal lengths for violet, green and red light rays are $f_V, f_G$ and $f_R$ respectively. Which of the following is the true relationship
→The magnetic flux linked with a vector area $\vec{A}$ in a uniform magnetic field $\vec{B}$ is
→A double star is a system of two stars rotating about their centre of mass only under their mutual gravitational attraction. Let the star have mass m and 2m and their separation be l. Their time period of rotation about their centre of mass will be proportional to
The dimension of the magnetic field intensity B is
A sinusoidal voltage $V(t) = 100\,sin\,(500t)$ is applied across a pure inductance of $L = 0.02\,H.$ The current through the coil is
→A tank containing a liquid has turns of wire wrapped around it, causing it to act as an inductor. The liquid content of the tank can be measured by using its inductance to determine the height of the liquid level in the tank. The inductance of the tank changes from a value of $L_0$ corresponding to a relative permeability of $1$ when the tank is empty to value $L_f$ corresponding to a relative permeability $X_m$ (relative permeability of liquid) when the tank is full. The appropriate electronic circuit can determine the inductance correct upto $5$ significant figures and thus the effective relative permeability of the combined air and liquid within the rectangular has height $D$. The height of the liquid level in the tank is d . Ignore the fringing effects. Assume tank is fitted with $H _{ g } X _{ Hg }=2.9 \times 10^5$. Express d as a function of $L$, inductance corresponding to a certain liquid height $LO,Lf$ and $D$.
→An $LCR$ series circuit of capacitance $62.5\,nF$ and resistance of $50\,\Omega$. is connected to an $A.C.$ source of frequency $2.0\,kHz$. For maximum value of amplitude of current in circuit, the value of inductance is $..........mH$. (take $\left.\pi^2=10\right)$
→What is the conductivity of a semiconductor sample having electron concentration of $5 \times 10^{18}\, m^{-3}$, hole concentration of $5 \times 10^{19}\, m^{-3}$, electron mobility of $2 .0\, m^2\, v^{-1}\, s^{-1}$ and hole mobility of $0.01\, m^2\, v^{ -1}\, s^{-1}$ ?........${\left( {\Omega - m} \right)^{ - 1}}$ (Take charge of electron as $1.6 \times 10^{-19}\, C$)
→Assertion : X-ray travel with the speed of light.
Reason : X-rays are electromagnetic rays.
Reason : X-rays are electromagnetic rays.