NEET questions
18092 published questions with worked solutions.
- Three resistances P, Q, R each of 2 and an unknown resistance S form the four arms of a Wheatstone bridge circuit. When a...
- The resistance of an ammeter is 13 and its scale is graduated for a current upto 100 Amps. After an additional shunt has been...
- Under the influence of a uniform magnetic field a charged particle is moving in a circle of radius R with constant speed V. The...
- A beam of electrons passes undeflected through mutually perpendicular electric and magnetic fields. If the electric field is...
- The primary and secondary coils of a transformer have 50 and 1500 turns respectively. If the magnetic flux linked with the...
- What is the value of inductance L for which the current is a maximum in a series LCR circuit with C = 10 F and = 1000 s ^ -1 ?
- A transformer is used to light a 100W and 110V lamp from a 220V mains. If the main current is 0.5A, the efficiency of the...
- Nickel shows ferromagnetic property at room temperature. If the temperature is increased beyond Curie temperature then it will...Not in JEE Advanced syllabus
- A 5 watt source emits monochromatic light of wavelength 5000 . When placed 0.5 m away, it liberates photoelectrons from a...
- Monochromatic light of frequency 6.0 10^ 14 Hz is produced by a laser. The power emitted is 2 10^ -3 W . The number of photons...
- In a mass spectrometer used for measuring the masses of ions, the ions are initially accelerated by an electric potential V and...
- If the nucleus ^ 27 _ 13 Al has a nuclear radius of about 3.6 fm, then ^ 125 _ 52 Te would have its radius approximately as
- In radioactive decay process, the negatively charged emitted ^- particles are
- A nucleus ^A_ZX has mass represented by M(A, Z). If M_p and M_n denote the mass of proton and neutron respectively and B.E. the...
- Two radioactive substances A and B have decay constants 5 and respectively. At t = 0 they have the same number of nuclei. The...
- The total energy of electron in the ground state of hydrogen atom is -13.6 eV . The kinetic energy of an electron in the first...
- For a cubic crystal structure which one of the following relations indicating the cell characteristics is correct?Not in JEE Main or NEET syllabus
- Which two of the following five physical parameters have the same dimensions? (a) energy density (b) refractive index (c)...
- If the error in the measurement of radius of a sphere is 2%, then the error in the determination of volume of the sphere will be
- The distance travelled by a particle starting from rest and moving with an acceleration 4 3 ms ^ -2 , in the third second is