NEET questions
18092 published questions with worked solutions.
- A mixture consists of two radioactive materials A_1 and A_2 with half lives of 20 s and 10 s respectively. Initially the mixture...
- If voltage across a bulb rated 220 Volt -100 Watt drops by 2.5 % of its rated value, the percentage of the rated value by which...
- C and Si both have same lattice structure, having 4 bonding electrons in each. However, C is insulator where as Si is intrinsic...Not in JEE Advanced syllabus
- Two persons of masses 55 kg and 65 kg respectively, are at the opposite ends of a boat. The length of the boat is 3.0 m and...
- The motion of a particle along a straight line is described by equation: x = 8 + 12t - t^3 where x is in metre and t in second....
- A concave mirror of focal length f_1 is placed at a distance of d from a convex lens of focal length f_2. A beam of light coming...
- A milli voltmeter of 25 milli volt range is to be converted into an ammeter of 25 ampere range. The value (in ohm) of necessary...
- The damping force on an oscillator is directly proportional to the velocity. The units of the constant of proportionality are
- Electron in hydrogen atom first jumps from third excited state to second excited state and then from second excited to the first...
- The electric field associated with an e.m. wave in vacuum is given by E = i ,40 (kz - 6 10^ 8 t), where E, z and t are in volt/m,...
- An alternating electric field, of frequency , is applied across the dees (radius = R) of a cyclotron that is being used to...
- In an electrical circuit R, L, C and an a.c voltage source are all connected in series. When L is removed from the circuit, the...
- In an experiment four quantities a, b, c and d are measured with percentage error 1 %, 2 %, 3 % and 4 % respectively. Quantity P...
- A stone falls freely under gravity. It covers distances h_1, h_2 and h_3 in the first 5 seconds, the next 5 seconds and the next...
- The upper half of an inclined plane of inclination is perfectly smooth while lower half is rough. A block starting from rest at...
- A uniform force of (3 i + j ) newton acts on a particle of mass 2 kg. Hence the particle is displaced from position (2 i + k )...
- An explosion breaks a rock into three parts in a horizontal plane. Two of them go off at right angles to each other. The first...
- A body of mass m is taken from the earth's surface to the height equal to twice the radius (R) of the earth. The change in...
- Infinite number of bodies, each of mass 2 kg are situated on x-axis at distances 1 m, 2 m, 4 m, 8 m, , respectively, from the...
- The following four wires are made of the same material. Which of these will have the largest extension when the same tension is...