NEET (UG) entrance exam Question Bank Solutions

If Q = `"X"^"n"/"Y"^"m"` and Δx is absolute error in the measurement of X, Δy is absolute error in the measurement of Y, then absolute error ΔQ in Q is ______.

The relative density of a metal may be found by hanging a block of the metal from a spring balance and nothing that in air, the balance reads (5 .00 ± 0.05)N while in water, it reads (4.00 ± 0.05)N. The relative density would be quoted as ______.

The working of venturimeter is based on ______.

In which of the following convection will not take place primarily?

A nucleus with mass number 240 breaks into two fragments each of mass number 120, the binding energy per nucleon of unfragmented nuclei is 7.6 MeV while that of fragments is 8.5 MeV. The total gain in the Binding Energy in the process is ______.

Three resistors having resistances r₁, r₂ and r₃ are connected as shown in the given circuit. The ratio `i_3/i_1` of currents in terms of resistances used in the circuit is:

For the given circuit, the input digital signals are applied at terminals A, B, and C. What would be the output at terminal y?

A nucleus with mass number 240 breaks into two fragments each of mass number 120, the binding energy per nucleon of unfragmented nuclei is 7.6 MeV while that of fragments is 8.5 MeV. The total gain in the Binding Energy in the process is ______

Three resistors having resistances r₁,  r₂ and r₃ are connected as shown in the given circuit. The ratio `"i"_3/"i"_1` of currents in terms of resistances used in the circuit is :

For the given circuit, the input digital signals are applied at the terminals A, B and C. What would be the output at the terminal y?

The maximum and minimum tensions in the string whirling in a circle of radius 2.5 m with constant velocity are in the ratio 5 : 3. Then its velocity is

Heavy radioactive elements eventually turn into ______.

The Wheatstone bridge is in a more balanced state when the ratio of arms P and Q is ______

A ray of light is incident at an angle of 45° on one face of a rectangular glass slab of thickness 10 cm and refractive index 3/2. Calculate the lateral shift produced ______.

A radioactive nucleus \[\ce{^A_ZX}\] undergoes spontaneous decay in the sequence \[\ce{^A_ZX -> _{Z-1 }B -> _{Z-3}C -> _{Z-2}D }\], where Z is the atomic number of element X. The possible decay particles in the sequence are ______.

An inductor of inductance L, a capacitor of capacitance C and a resistor of resistance ‘R’ are connected in series to an ac source of potential difference ‘V’ volts as shown in the figure.

The potential difference across L, C, and R is 40 V, 10 V and 40 V, respectively. The amplitude of the current flowing through the LCR series circuit is `10sqrt2 "A"`. The impedance of the circuit is:

The half-life of a radioactive nuclide is 100 hours. The fraction of original activity that will remain after 150 hours would be ______.

The half-life of a radioactive nuclide is 100 hours. The fraction of original activity that will remain after 150 hours would be ______.

When one electron is taken towards the other electron, then the electric potential energy of the system ______

The coil of galvanometer consists of 100 turns and effective area of 1 square cm. The restoring couple is 10^-8 N-m/rad. The magnetic field between the pole pieces is 5T. The current sensitivity of this galvanometer will be ______.