Download App

5. Magnetism and matter — Physics STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 SciencePhysics5. Magnetism and matter1 Mark
MCQ
In sum and difference method in vibration magnetometer, the time period is more if
  • A
    Similar poles of both magnets are on same sides
  • ✓
    Opposite poles of both magnets are on same sides
  • C
    Both magnets are perpendicular to each other
  • D
    Nothing can be said
✓

Answer

Correct option: B.
Opposite poles of both magnets are on same sides
b
(b)In sum position : ${T_S} = 2\pi \sqrt {\frac{{{I_s}}}{{({M_1} + {M_2}){B_H}}}} $
In difference position : ${T_d} = 2\pi \sqrt {\frac{{{I_d}}}{{({M_1} - {M_2}){B_H}}}} $
It is clear that ${T_d} > {T_s}$

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

More "M.C.Q (1 Marks)" from 5. Magnetism and matter→5. Magnetism and matter — all question types→Physics STD 12 Science question papers→CBSE Board STD 12 Science question papers→CBSE Board question paper generator→

Similar questions

By placing the prism in minimum deviation position, images of the spectrum
→
Two coaxial solenoids $1$ and $2$ of the same length are set so that one is inside the other. The number of turns per unit length are ${n_1}$ and ${n_2}$. The currents ${i_1}$ and ${i_2}$ are flowing in opposite directions. The magnetic field inside the inner coil is zero. This is possible when
→
The momentum of a photon of energy hv will be
→
Magnetic field inside a solenoid is:
→
If a thin prism of glass is dipped into water then minimum deviation (with respect to air) of light produced by prism will be left $\left( {_a{\mu _g} = \frac{3}{2}{\rm{ and}}{\,_a}{\mu _w}\, = \,\frac{4}{3}} \right)$
→
Consider a uniform electric field in the $\hat{\text{Z}}$ direction. The potential is a constant:
→
Point charges $+4 q,-q$ and $+4 q$ are kept on the $X$-axis at points $x=0, x=a$ and $x=2$ a respectively:
→
For the given figure the direction of electric field at $A$ will be
→
Distance between two slits $S_1$ and $S_2$ in Young's double slit experiment is 1 mm . What should be the width of each slit so that the $10^{\text {th }}$ maximum of the double slit is obtained at the central maximum of the slit?
→
The ratio of real depth to apparent depth is called the the:
→