List of top Questions asked in NEET (UG)

In the equation $GPP - R = NPP\,\,\, R$ represents :

In some members of which of the following pairs of families, pollen grains retain their viability for months after release

Which of the following statements is correct?

The number of photons per second on average emitted by the source of monochromatic light of wavelength 600 nm, when it delivers the power of 3.3×10⁻³ watt will be : (h=6.6×10⁻³⁴ Js)

An infinitely long straight conductor carries a current of 5 A as shown. An electron is moving with a speed of 10⁵ m/s parallel to the conductor. The perpendicular distance between the electron and the conductor is 20 cm at an instant. Calculate the magnitude of the force experienced by the electron at that instant

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

If $E$ and $G$ respectively denote energy and gravitational constant, then $\frac{ E }{ G }$ has the dimensions of:

If force $[ F ]$, acceleration $[ A ]$ and time $[ T ]$ are chosen as the fundamental physical quantities. Find the dimensions of energy.

Following are the statements about prostomium of earthworm.
(a) It serves as a covering for mouth.
(b) It helps to open cracks in the soil into which it can crawl.
(c) It is one of the sensory structures.
(d) It is the first body segment.
Choose the correct answer from the options given below

Which of these is not an important component of initiation of parturition in humans

The Adenosine deaminase deficiency results into

Which enzyme is responsible for the conversion of inactive fibrinogens to fibrins

Which of the following characteristics is incorrect with respect to cockroach ?

Veneral diseases can spread through : (a) Using sterile needles (b) Transfusion of blood from infected person (c) Infected mother to fetus (d) Kissing (e) Inheritance Choose the correct answer from the options given below

During the process of gene amplification using PCR, if very high temperature is not maintained in the beginning, then which of the following steps of PCR will be affected first ?

For effective treatment of the disease, early diagnosis and understanding its pathophysiology is very important. Which of the following molecular diagnostic techniques is very useful for early detection

A $40\, \mu\,F$ capacitor is connected to a $200\,V$,$50\,Hz$ ac supply. The rms value of the current in the circuit is, nearly :

A short electric dipole has a dipole moment of \(16 \times 10^{-9} C\, m\). The electric potential due to the dipole at a point at a distance of \(0.6 \,m\) from the centre of the dipole, situated on a line making an angle of \(60\degree\)with the dipole axis is : \((\frac {1}{4\pi \epsilon_o}= 9 \times 10^9 N\,m^2/C^2)\)

Identify a molecule which does not exist.

The phase difference between displacement and acceleration of a particle in a simple harmonic motion is:

Assume that light of wavelength $600\, nm$ is coming from a star. The limit of resolution of telescope whose objective has a diameter of $2\,m$ is :

Calculate the acceleration of the block and trolly system shown in the figure The coefficient of kinetic friction between the trolly and the surface is $0.05. (g = 10 \,m/s^{2}$, mass of the string is negligible and no other friction exists

Embryological support for evolution was proposed by :