Download App

STD 12 - 5. Magnetism and matter — NEET STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceNEETSTD 12 - 5. Magnetism and matter4 Marks
MCQ
An example of a perfect diamagnet is a superconductor. This implies that when a superconductor is put in a magnetic field of intensity $B$, the magnetic field $B_s$ inside the superconductor will be such that
  • A
    $B_s\, =-B$
  • ✓
    $B_s\, =0$
  • C
    $B_s\, = B$
  • D
    $B_s\, < B$ but $B_s \ne 0$
✓

Answer

Correct option: B.
$B_s\, =0$
b
Magnetic field inside the superconductor is zero . Diamagnetic substances are repelled in external magnetic field

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

Explore more

NEET STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

The self inductance of a choke coil is $10\, mH$. When it is connected with a $10\,V$ $dc$ source, then the loss of power is $20\, watt$. When it is connected with $10\, volt$ $ac$ source, then loss of power is $10\, watt.$ The frequency of $ac$ source will be......$Hz$
→
A potentiometer wire of length $100\, cm$ has a resistance of $10\, ohm.$ It is connected in series with a resistance and an accumulator of emf $2\,V$ and of negligible internal resistance. A source of emf $10\, mV$ is balanced against a length of $40\, cm$ of the potentiometer wire. What is the value of external resistance :- ................. $\Omega$
→
Two planets $A$ and $B$ having masses $m_1$ and $m_2$ move around the sun in circular orbits of $r_1$ and $r_2$ radii respectively. If angular momentum of $\mathrm{A}$ is $\mathrm{L}$ and that of $B$ is $3L$, the ratio of time period $\left(\frac{T_A}{T_B}\right)$ is:
→
Given below in the left column are different modes of communication using the kinds of waves given in the right column

$A.$ Optical Fiber Communication $P.$ Ultrasound
$B.$ Radar $Q.$ Infrared Light
$C.$ Sonar $R.$ Microwaves
$D.$ Mobile Phones $S.$ Radio Waves

From the options given below, find the most appropriate match between entries in the left and the right column

→
Two mirrors, labeled $LM$ for left mirror and $RM$ for right mirror in the adjacent figure, are parallel to each other and $3.0\, m$ apart. $A$ person standing $1.0\, m$ from the right mirror $(RM)$ looks into this mirror and sees a series of images. How far from the person is the second closest image seen in the right mirror $(RM)$?......$m$
→
Eight drops of mercury of equal radii possessing equal charges combine to form a big drop. Then the capacitance of bigger drop compared to each individual small drop is........$times$
→
A particle moves in $xy$ plane according to the law $x = a \sin \omega t$ and $y = a(1-\cos \omega t)$ where $a$ and $\omega$ are constants. The particle traces
→
A conductor $ABOCD$ moves along its bisector with a velocity of $1\, m/s$ through a perpendicular magnetic field of $1$ $wb/m^2$, as shown in fig. If all the four sides are of $1\,m$ length each, then the induced emf between points $A$ and $D$ is......$volt$
→
In capillary pressure below the curved surface of water will be
→
Ball $A$ is thrown up vertically with speed $10 \,m / s$. At the same instant another ball $B$ is released from rest at height h. At time $t$, the speed of $A$ relative to $B$ is ...........
→