MCQ
Vibration magnetometer before use, should be set
- ✓In magnetic meridian
- BIn geographical meridian
- CPerpendicular to magnetic meridian
- DIn any position
✓
Answer
Correct option: A.
In magnetic meridian
In magnetic meridian
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
The energy gap of silicon is $1.14 eV. $The maximum wavelength at which silicon will begin absorbing energy is
→An $a.c.$ of frequency $f$ is flowing in a circuit containing only an ideal choke coil of inductance $L$. If $V_0$ and $i_0$ represent peak values of the voltage and the current respectively, the average power given by the source to the choke coil is equal to
→When seen in green light, the saffron and green portions of our National Flag will appear to be
When the current through the electromagnet of a relay reaches a particular value.
The electromotive force of a primary cell is $2\, volts$. When it is short-circuited it gives a current of $4$ amperes. Its internal resistance in $ohms$ is
→The wavelength of Lyman series is
In the circuit shown in figure, the ratio of charges on $5\ \mu F$ and $4\ \mu F$ capacitor is :
→In a double slit arrangement fringes are produced using light of wavelength $4800 Å$. One slit is covered by a thin plate of glass of refractive index $1.4$ and the other with another glass plate of same thickness but of refractive index $1.7$. By doing so the central bright shifts to original fifth bright fringe from centre. Thickness of glass plate is......$\mu m$
→In the figure shown, for an angle of incidence 45°, at the top surface, what is the minimum refractive index needed for total internal reflection at vertical face
The electron in a hydrogen atom first jumps from the third excited state to the second excited state and subsequently to the first excited state. The ratio of the respective wavelengths, $\lambda _1/\lambda _2$, of the photons emitted in this process is
→