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# Physics Questions and Problems **Problem 8:** If a glass prism ABC with a refractive index of √3 is placed in air, as shown in the figure, what will be the value of the angle of emergence 'e'? * (a) 30° * (b) 45° * (c) 75° * (d) 60° **Problem 9:** A rod 'X' is suspended in a uniform magnetic...

# Physics Questions and Problems **Problem 8:** If a glass prism ABC with a refractive index of √3 is placed in air, as shown in the figure, what will be the value of the angle of emergence 'e'? * (a) 30° * (b) 45° * (c) 75° * (d) 60° **Problem 9:** A rod 'X' is suspended in a uniform magnetic field. It aligns itself perpendicular to the field as shown below. ``` N X S ``` Statement I: The susceptibility of the material of the rod 'X' is small and negative. Statement II: When placed in a non-uniform magnetic field, rod 'X' tends to move slowly from a weaker field to a stronger field. Which statement(s) is/are true? * (a) only I is true * (b) both I and II are true * (c) only II is true * (d) Neither I nor II is true **Problem 10:** A coil of 100 turns carries a current of 5mA and creates a magnetic flux of $10^{-5}$ weber. What is the inductance? * (a) 0.2 mH * (b) 2.0 mH * (c) 0.02 mH * (d) 0.002 mH **Problem 11:** Magnetic moment for three different circular current loops are calculated using the details given below: | Loop | No. of turns | Area of the loop (m²) | Current passing in the loop (ampere) | Magnetic moment | |---|---|---|---|---| | 1 | 50 | 2.5 | 2 | M1 | | 2 | 50 | 4 | 1.5 | M2 | | 3 | 25 | 5 | 2 | M3 | Compare the magnetic moments. * (a) M1 = M2 = M3 * (b) M2 > M1 = M3 * (c) M2 < M1 > M3 * (d) M2 = M1 < M3 **Problem 12:** Alternating emf $E = 220 \sin(100\pi t)$ is applied to a circuit containing an inductance of 1 H. What is the peak value of the current? * (a) 2.2 A * (b) 22 A * (c) 220 A * (d) 0.22 A **Problems 13-16 (Assertion and Reason):** These problems involve Assertion (A) and Reason (R) statements, asking to choose the correct option regarding their truth and the relationship between them. The specific statements are not included in this summary as they are too numerous to list here. **Note:** The image contains several other problems related to physics concepts, but they are not described in this response in order to limit the length of the summary.