Day 478: JEE Mains Physics
5 questions. Try each one first, then open its answer.
Question 1
Oscillations. Asked once: 24 Jan 2025
13A particle is executing simple harmonic motion with time period 2 s and amplitude 1 cm . If D and d are the total distance and displacement covered by the particle in 12.5 s , then is :-Tap an option to check your answer.
Question 2
Ray Optics. Asked once: 7 Apr 2025
89Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R) Assertion (A) : Refractive index of glass is higher than that of air. Reason (R) : Optical density of a medium is directly proportionate to its mass density which results in a proportionate refractive index. In the light of the above statements, choose the most appropriate answer from the options given below:Tap an option to check your answer.
Question 3
Semiconductor Electronics. Asked once: 2 Apr 2026 S2
5If X and Y are the inputs, the given circuit works as .Tap an option to check your answer.
Question 4
System of Particles and Rotational Motion. Asked once: 28 Jan 2026 S1
4Two circular discs of radius each 10 cm are joined at their centres by a rod of length 30 cm and mass 600 gm as shown in figure. If the mass of each disc is 600 gm and applied torque between two discs is dyne cm , the angular acceleration of the discs about the given axis is .Tap an option to check your answer.
Question 5
Thermal Properties of Matter. Asked once: 26 Jul 2022
101An ice cube of dimensions is placed in an insulation box of wall thickness . The box keeping the ice cube at of temperature is brought to a room of temperature . The rate of melting of ice is approximately: (Latent heat of fusion of ice is and thermal conductivity of insulation wall is )Tap an option to check your answer.