2025100 marks25 questions
21 of its 25 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: JEE (Main) 2025, Paper 1 (B.E./B.Tech), 7 Apr 2025 Shift 2, Physics, published by NTA. The official PDF
The dimension of √(μ₀/ε₀) is equal to that of : (μ₀ = Vacuum permeability and ε₀ = Vacuum permittivity)
Match List - I with List - II. List - I:
An object with mass 500 g moves along x-axis with speed v = 4√x m/s. The force acting on the object is :
A helicopter flying horizontally with a speed of 360 km/h at an altitude of 2 km, drops an object at an instant. The object hits the ground at a point O, 20 s after it is dropped. Displacement of ‘O’ from the position of helicopter where the object was released is : (use acceleration due to gravity g = 10 m/s² and neglect air resistance)
Which one of the following forces cannot be expressed in terms of potential energy ?
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : The radius vector from the Sun to a planet sweeps out equal areas in equal intervals of time and thus areal velocity of planet is constant. Reason (R) : For a central force field the angular momentum is a constant. In the light of the above statements, choose the most appropriate answer from the options given below :
A capillary tube of radius 0.1 mm is partly dipped in water (surface tension 70 dyn/cm and glass water contact angle ≈ 0°) with 30° inclined with the vertical. The length of water risen in the capillary is __________ cm. (Take g = 9.8 m/s²)
The helium and argon are put in the flask at the same room temperature (300 K). The ratio of average kinetic energies (per molecule) of helium and argon is : (Give : Molar mass of helium = 4 g/mol, Molar mass of argon = 40 g/mol)