Day 484: JEE Mains Physics
5 questions. Try each one first, then open its answer.
Question 1
System of Particles and Rotational Motion. Asked once: 23 Jan 2026 S1
17Two small balls with masses m and 2 m are attached to both ends of a rigid rod of length d and negligible mass. If angular momentum of this system is L about an axis (A) passing through its centre of mass and perpendicular to the rod then angular velocity of the system about A is :Tap an option to check your answer.
Question 2
Thermal Properties of Matter. Asked once: 25 Jul 2022
24A unit scale is to be prepared whose length does not change with temperature and remains , using a bimetallic strip made of brass and iron each of different length. The length of both components would change in such a way that difference between their lengths remains constant. If the length of brass is , the length of iron will be . ( and ).Question 3
Thermodynamics. Asked once: 29 Jan 2025
77Given below are two statements. One is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : With the increase in the pressure of an ideal gas, the volume falls off more rapidly in an isothermal process in comparison to the adiabatic process. Reason (R) : In isothermal process, constant, while in adiabatic process constant. Here is the ratio of specific heats, P is the pressure and V is the volume of the ideal gas. In the light of the above statements, choose the correct answer from the options given below :Tap an option to check your answer.
Question 4
Units and Measurements. Asked once: 28 Jan 2025
23In a measurement, it is asked to find modulus of elasticity per unit torque applied on the system. The measured quantity has dimension of . If , the value of isQuestion 5
Wave Optics. Asked once: 27 Jul 2022
16A microscope was initially placed in air (refractive index 1). It is then immersed in oil (refractive index 2). For a light whose wavelength in air is , calculate the change of microscope's resolving power due to oil and choose the correct optionTap an option to check your answer.