200766 marks22 questions
13 of its 22 questions are here. The rest have a figure or are still being checked, so for now they're only in the official PDF.
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Source: IIT-JEE 2007, Paper 2, Physics, published by JEE (Advanced). The official PDF
In the experiment to determine the speed of sound using a resonance column,
A student performs an experiment to determine the Young’s modulus of a wire, exactly 2 m long, by Searle’s method. In a particular reading, the student measures the extension in the length of the wire to be 0.8 mm with an uncertainty of ±0.05 mm at a load of exactly 1.0 kg. The student also measures the diameter of the wire to be 0.4 mm with an uncertainty of ±0.01 mm. Take g = 9.8 m/s² (exact). The Young’s modulus obtained from the reading is
A particle moves in the X-Y plane under the influence of a force such that its linear momentum is p⃗(t) = A[î cos(kt) − ĵ sin(kt)], where A and k are constants. The angle between the force and the momentum is
Positive and negative point charges of equal magnitude are kept at (0, 0, a/2) and (0, 0, −a/2), respectively. The work done by the electric field when another positive point charge is moved from (−a, 0, 0) to (0, a, 0) is
Electrons with de-Broglie wavelength λ fall on the target in an X-ray tube. The cut-off wavelength of the emitted X-rays is
STATEMENT-1 If there is no external torque on a body about its center of mass, then the velocity of the center of mass remains constant. because STATEMENT-2 The linear momentum of an isolated system remains constant.
STATEMENT-1 A cloth covers a table. Some dishes are kept on it. The cloth can be pulled out without dislodging the dishes from the table. because STATEMENT-2 For every action there is an equal and opposite reaction.
STATEMENT-1 The total translational kinetic energy of all the molecules of a given mass of an ideal gas is 1.5 times the product of its pressure and its volume. because STATEMENT-2 The molecules of a gas collide with each other and the velocities of the molecules change due to the collision.