JEE MAIN 2025(29jan shift2)Two planets, A and B are orbiting a common star in circular orbits of rad
Description Two planets, A and B are orbiting a common star in circular orbits of radii RA and RB, respectively, with RB = 2RA. The … Read More
JEE MAIN 2025(29jan shift2): A physical quantity Q is related to four observablesa, b, c, d as foll
Description A physical quantity Q is related to four observables a, b, c, d as follows : Q =ab4/ cd where, a = (60 ± … Read More
JEE MAIN 2025(29jan shift2)Match List-I with List-II.A)Young’s Modulus (B) Torque (C) Coefficient o
Description Match List-I with List-II. A)Young’s Modulus (B) Torque (C) Coefficient of Viscosity (D) Gravitational Constant Welcome to Allen.AskDoubtnut.com – India’s Largest Platform for Instant … Read More
JEE MAIN 2025(29jan shift2): A sand dropper drops sand of mass m(t) on a conveyer belt at a rat
Description A sand dropper drops sand of mass m(t) on a conveyer belt at a rate proportional to the square rootofspeed(v)ofthebelt,i.e. dm/dt is proportional to … Read More
JEE MAIN 2025(29jan shift2)A convex lens mode of glass (refractive index = 1.5) has focal length 24
Description A convex lens mode of glass (refractive index = 1.5) has focal length 24 cm in air. When it is totally immersed in water … Read More
JEE MAIN 2025(29jan shift2)Given below are two statements.Assertion (A) :Three identical spheres of
Description Given below are two statements. One is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) :Three identical spheres … Read More
JEE MAIN 2025(29jan shift2)Two concave refracting surfaces of equal radii of curvature and refracti
Description Two concave refracting surfaces of equal radii of curvature and refractive index 1.5 face each other in air as shown in figure. A point … Read More
JEE MAIN 2025(29jan shift2)A plane electromagnetic wave propagates along the + x direction in free s
Description A plane electromagnetic wave propagates along the + x direction in free space. The components of the electric field E and magnetic field B … Read More
JEE MAIN 2025(29jan shift2):A point charge causes an electric flux of –2 × 104 Nm2C–1 to pass throug
Description A point charge causes an electric flux of –2 × 104 Nm2C–1 to pass through a spherical Gaussian surface of 8.0 cm radius, centred … Read More
JEE MAIN 2025,29jan shift 2(By graph and short trick): In an experiment with photoelectric effect, t
Description In an experiment with photoelectric effect, the stopping potential. (1) increases with increase in the wavelength of the incident light (2) increases with increase … Read More