1
IAT (IISER) 2024
MCQ (Single Correct Answer)
+4
-1
A conducting wire carrying a steady current $I$ is shaped as shown in the figure below. All connected graight segments meet at right angles. What is the magnetic moment of the current loop? IAT (IISER) 2024 Physics - Moving Charges and Magnetism Question 1 English
A
$\operatorname{Iab}(\hat{\jmath}-\hat{k})$
B
$\operatorname{Iab}(\hat{\jmath}+\hat{k})$
C
$\sqrt{2} \operatorname{I} a b(\hat{\jmath}+\hat{k})$
D
$\operatorname{Iab}(\hat{\mathrm{k}}-\hat{\jmath})$
2
IAT (IISER) 2024
MCQ (Single Correct Answer)
+4
-1

Consider the shown circuit. The capacitors $C_1$ and $C_2$ have capacitances $2 \mu \mathrm{~F}$ and $8 \mu \mathrm{~F}$, respectively. The switch can connect point $X$ to either $Y$ or $Z$. Initially $X Y$ is connected until the capacitor is fully charged by the battery. Then the switch connects $X$ and $Z$, and the final charges on Cl and C 2 are $Q_1$ and $Q_2$, respectively. What is the value of the ratio $\frac{Q_2}{Q_1+Q_2}$ ?

IAT (IISER) 2024 Physics - Capacitor Question 1 English
A
$1 / 2$
B
$1 / 4$
C
$1 / 5$
D
$4 / 5$
3
IAT (IISER) 2024
MCQ (Single Correct Answer)
+4
-1
Atomic masses of two oxygen isotopes ${ }_8^{16} \mathrm{O}$ and ${ }_8^{18} \mathrm{O}$ are 15.99491 u and 17.99916 u , respectively, where $u$ is the atomic mass unit. Masses of protom and neutron are given by 1.00727 u and I .00866 u , respectively. The speed of light is c . What is the difference between the binding energies of ${ }_8^{18} \mathrm{O}{ }_8^{16} \mathrm{O}$ nuclei in units of $u c^2$ ?
A
0.01307
B
2.00425
C
0.99559
D
3.01291
4
IAT (IISER) 2024
MCQ (Single Correct Answer)
+4
-1
The refractive indices $(n)$ of two transparent slabs are 2 and $2 / \sqrt{3}$. They are attached together and placed in a third transparent medium of refractive index $\sqrt{2}$, as shown in the figure. The thickness of the upper slab is $I \mathrm{~cm}$. A monochromatic light ray is incident on the upper slab at $45^{\circ}$. What would be the thickness in cm of the lower slab such that the lateral shift of the ray after passing through both the slabs is zero? IAT (IISER) 2024 Physics - Ray Optics Question 1 English
A
$1 / 2$
B
$1 / \sqrt{2}$
C
$1 / \sqrt{3}$
D
$\sqrt{3} / 2$
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