NEET 2019 Exam Paper (Odisha) (180 Q) - Mock Test

Two toroids $1$ and $2$ have total no. of turns $200$ and $100$ respectively with average radii $40\text{cm}$ and $20\text{cm}$ respectively. If they carry the same current $i$, what will be the ratio of the magnetic fields along the two loops?

In Young's double-slit experiment, if there is no initial phase difference between the light from the two slits, a point on the screen corresponding to the fifth minimum has a path difference:

The angular width of the central maximum in the Fraunhofer diffraction for $\lambda =6000\text{A˚}$ is ${\theta }_0$. When the same slit is illuminated by another monochromatic light, the angular width decreases by $30\%$. The wavelength of this light is:

An object flying in the air with velocity $(20\hat{i}+25\hat{j}-12\hat{k})$ suddenly breaks into two pieces whose masses are in the ratio of $1:5$. The smaller mass flies off with a velocity $(100\hat{i}+35\hat{j}+8\hat{k})$. The velocity of the larger piece will be:

The reading of an ideal voltmeter in the circuit shown is: