Physics questions
20027 published questions with worked solutions.
- A plane electromagnetic wave propagates along the + x direction in free space. The components of the electric field, E and...
- A sand dropper drops sand of mass m(t) on a conveyer belt at a rate proportional to the square root of speed (v) of the belt,...
- A convex lens mode of glass (refractive index = 1.5) has focal length 24 cm in air. When it is totally immersed in water...
- Match List-I with List-II. List-I: (A) Young's Modulus (B) Torque (C) Coefficient of Viscosity (D) Gravitational Constant...
- Match List-I with List-II. List-I: (A) Magnetic induction (B) Magnetic intensity (C) Magnetic flux (D) Magnetic moment List-II:...Not in JEE Advanced syllabus
- The magnetic field inside a 200 turns solenoid of radius 10 cm is 2.9 × 10^ -4 Tesla. If the solenoid carries a current of 0.29...
- A parallel plate capacitor consisting of two circular plates of radius 10 cm is being charged by a constant current of 0.15 A. If...
- A physical quantity Q is related to four observables a, b, c, d as follows : Q = ab^4 cd where, a = (60 ± 3)Pa; b = (20 ± 0.1)m;...
- Two planets, A and B are orbiting a common star in circular orbits of radii R_A and R_B, respectively, with R_B = 2R_A. The...
- Two cars P and Q are moving on a road in the same direction. Acceleration of car P increases linearly with time whereas car Q...
- Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : Net...
- Energy released when two deuterons (_1H^2) fuse to form a helium nucleus (_2He^4) is (Given: Binding energy per nucleon of _1H^2...
- Two water drops each of radius 'r' coalesce to form a bigger drop. If 'T' is the surface tension, the surface energy released in...
- A bi-convex lens has radius of curvature of both the surfaces same as 1/6 cm. If this lens is required to be replaced by another...
- An electron with mass 'm' with an initial velocity (t = 0) v = v_0 i (v_0 > 0) enters a magnetic field B = B_0 j . If the initial...
- Two identical objects are placed in front of convex mirror and concave mirror having same radii of curvature of 12 cm, at same...
- A sinusoidal wave of wavelength 7.5 cm travels a distance of 1.2 cm along the x-direction in 0.3 sec. The crest P is at x = 0 at...
- Identify the characteristics of an adiabatic process in a monoatomic gas. (A) Internal energy is constant. (B) Work done in the...
- The length of a light string is 1.4 m when the tension on it is 5 N. If the tension increases to 7 N, the length of the string is...
- The internal energy of air in 4 m × 4 m × 3 m sized room at 1 atmospheric pressure will be _____ × 10⁶ J. (Consider air as...