List of top Questions asked in NEET (UG)

The power radiated by a black body is $P$ and it radiates maximum energy at wavelength, $\lambda_0$. If the temperature of the black body is now changed so that it radiates maximum energy at wavelength $\frac{3}{4} \lambda_0$ , the power radiated by it becomes $nP$. The value of $n$ is
In which disease does mosquito transmitted pathogen cause chronic inflammation of lymphatic vessels ?
Winged pollen grains are present in
In which case is the number of molecules of water maximum ?
Which of the following has proved helpful in preserving pollen as fossils ?
Double fertilization is
What is the role of $NAD^+$ in cellular respiration ?
Which one is wrongly matched ?
Which of the following elements is responsible for maintaining turgor in cells
An electron of mass $m$ with an initial velocity $\vec{V} = V_0 \hat{i} (V_0 > 0)$ enters an electric field $\vec{E} = - E_0 \hat{i} (E_0 = \text{constant } > 0)$ at $t = 0$. If $\lambda_o$ is its de-Broglie wavelength initially,. then its de-Broglie wavelength at time $t$ is
Match the items given in Column I with those in Column U and select the correct option given below:
Column - I Column - II
(a) Proliferative Phase (i) Breakdown of endometrial lining
(b) Secretory Phase (ii) Follicular Phase
(c) Menstruation (iii) Luteal Phase
The difference between spermiogenesis and spermiation is
A small sphere of radius $'r'$ falls from rest in a viscous liquid. As a result, heat is produced due to viscous force. The rate of production of heat when the sphere attains its terminal velocity, is proportional to
According to Hugo de Vries, the mechanism of evolution is
Which of the following is an amino acid derived hormone ?
Which one of these animals is not a homeotherm ?
Which of the following is an occupational respiratory disorder ?
Iron carbonyl, $Fe(CO)_5$ is
An object is placed at a distance of $40\, cm$ from a concave mirror of focal length $15\, cm$. If the object is displaced through a distance of $20\, cm$ towards the mirror, the displacement of the image will be
Which of the following molecules represents the order of hybridisation $sp^2 , sp^2, sp, sp$ from left to right atoms ?
Which of the following is correct with respect to $- I$ effect of the substituents ? $(R =$ alkyl $)$
Match the metal ions given in Column I with the spin magnetic moments of the ions given in Column II and assign the correct code :
Column I Column II
a. $Co^{3+}$ i. $\sqrt{8} B.M$
b. $Cr^{3+}$ 11. $\sqrt{35} B.M$
c. $Fe^{3+}$ iii. $\sqrt{3} B.M$
d $Ni^{2+}$ iv $\sqrt{24} B.M$
v $\sqrt{15} B.M$
Which one of the following ions exhibits $d-d$ transition and paramagnetism as well ?
An astronomical refracting telescope will have large angular magnification and high angular resolution, when it has an objective lens of
The electrostatic force between the metal plate of an isolated parallel plate capacitor $C$ having charge $Q$ and area $A$, is