Some physical quantities are given in Column I and some possible SI units in which these quantities may be expressed are given in Column II. Match the physical quantities in Column I with the units in Column II and indicate your answer by darkening appropriate bubbles in the 4 $$\times$$ 4 matrix given in the ORS.
| Column I | Column II | ||
|---|---|---|---|
| (A) | GM$$_e$$M$$_s$$ G - universal gravitational constant, M$$_e$$ - mass of the earth, M$$_s$$ - mass of the Sun |
(P) | (volt) (coulomb) (metre) |
| (B) | $${{3RT} \over M}$$ R - universal gas constant, T - absolute temperature, M - molar mass |
(Q) | (kilogram) (metre)$$^3$$ (second)$$^{-2}$$ |
| (C) | $${{{F^2}} \over {{q^2}{B^2}}}$$ F - force, q - charge, B - magnetic field |
(R) | (metre)$$^2$$ (second)$$^{-2}$$ |
| (D) | $${{G{M_e}} \over {{R_e}}}$$ G - universal gravitational constant, M$$_e$$ - mass of the earth R$$_e$$ - radius of the earth |
(S) | (farad) (volt)$$^2$$ (kg)$$^{-1}$$ |
Column I gives certain situations in which a straight metallic wire of resistance R is used and Column II gives some resulting effects. Match the statements in Column I with the statements in Column II and indicate your answer by darkening appropriate bubbles in the 4 $$\times$$ 4 matrix given in the ORS.
| Column I | Column II | ||
|---|---|---|---|
| (A) | A charged capacitor is connected to the ends of the wire | (P) | A constant current flows through the wire |
| (B) | The wire is moved perpendicular to its length with a constant velocity in a uniform magnetic field perpendicular to the plane of motion | (Q) | Thermal energy is generated in the wire |
| (C) | The wire is placed in a constant electric field that has a direction along the length of the wire. | (R) | A constant potential difference develops between the ends of the wire |
| (D) | A battery of constant emf is connected to the ends of the wire | (S) | Charges of constant magnitude appear at the ends of the wire |
Some laws/processes are given in Column I. Match these with the physical phenomena given in Column II and indicate your answer by darkening appropriate bubbles in the 4 $$\times$$ 4 matrix given in the ORS.
| Column I | Column II | ||
|---|---|---|---|
| (A) | Transition between two atomic energy levels | (P) | Characteristic X-rays |
| (B) | Electron emission from a material | (Q) | Photoelectric effect |
| (C) | Mosley's law | (R) | Hydrogen spectrum |
| (D) | Change of photon energy into kinetic energy of electrons | (S) | $$\beta$$-decay |
Statement 1 :
The formula connecting u, v and f for a spherical mirror is valid only for mirrors whose sizes are very small compared to their radii of curvature.
Statement 2 :
Laws of reflection are strictly valid for plane surfaces, but not for large spherical surfaces.
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