NEET questions
18092 published questions with worked solutions.
- A particle of mass m, charge Q and kinetic energy T enters a transverse uniform magnetic field of induction B . After 3 seconds...
- A circular disc of radius 0.2 meter is placed in a uniform magnetic field of induction 1 ( Wb m ^2 ) in such a way that its axis...
- A galvanometer of resistance 50 is connected to a battery of 3 V along with a resistance of 2950 in series. A full scale...
- A long solenoid has 500 turns. When a current of 2 ampere is passed through it, the resulting magnetic flux linked with each turn...
- In the phenomenon of electric discharge through gases at low pressure, the coloured glow in the tube appears as a result of
- The work function of a surface of a photosensitive material is 6.2 eV. The wavelength of the incident radiation for which the...
- A particle of mass 1 mg has the same wavelength as an electron moving with a velocity of 3 10^6 ms ^ -1 . The velocity of the...
- Two radioactive materials X_1 and X_2 have decay constants 5 and respectively. If initially they have the same number of nuclei,...
- If M(A;Z), M_p and M_n denote the masses of the nucleus ^ A _ Z X, proton and neutron respectively in units of u (1 u = 931.5 MeV...
- If the lattice parameter for a crystalline structure is 3.6 , then the atomic radius in fcc crystal isNot in JEE Main or NEET syllabus
- A p-n photodiode is made of a material with a band gap of 2.0 eV. The minimum frequency of the radiation that can be absorbed by...
- The value of equilibrium constant of the reaction HI(g) 1 2 H _2 (g) + 1 2 I _2 (g) is 8.0 The equilibrium constant of the...
- If a stands for the edge length of the cubic systems : simple cubic, body centred cubic and face centred cubic, then the ratio of...Not in JEE Main or NEET syllabus
- Kohlrausch's law states that at
- Which of the following are not state functions? (I) q + w (II) q (III) w (IV) H - TS
- What volume of oxygen gas ( O _2) measured at 0^ C and 1 atm, is needed to burn completely 1 L of propane gas ( C _3 H _8)...
- Bond dissociation enthalpy of H _2, Cl _2 and HCl are 434, 242 and 431 kJ mol ^ -1 respectively. Enthalpy of formation of HCl is
- Equal volumes of three acid solutions of pH 3, 4 and 5 are mixed in a vessel. What will be the H ^+ ion concentration in the...
- If the concentration of OH ^- ions in the reaction Fe(OH) _3 (s) Fe ^ 3+ (aq) + 3 OH ^- (aq) is decreased by 1 4 times, then...
- For the gas phase reaction, PCl _5 (g) PCl _3 (g) + Cl _2 (g) Which of the following conditions is correct?