List of top Questions asked in AMUEEE

The emf of the cell involving the following reaction $ {2Ag^+ + H_2 -> 2Ag + 2H^+} $ is $ 0.80 \,Volt $ . The standard oxidation potential of silver electrode is
A train approaching a railway crossing at a speed of $ 120 \,km/h $ sounds a whistle at frequency $ 640 \,Hz $ when it is $ 300\, m $ away from the crossing. The speed of sound in air is $ 340 \,m/s $ . What will be the frequency heard by a person standing on a road perpendicular to the track through the crossing at a distance of $ 400\, m $ from the crossing?
A plane electromagnetic wave of frequency $25 \,MHz$ travels in free space along the $x$-direction. At a particular point in space and time, $E=6.3 \hat{j} \,V / m$. At this point $B$ is equal to
A particle of mass $m$ moving with speed $v$ towards east strikes another particle of same mass moving with same speed $v$ towards north. After striking, the two particles fuse together. With what speed this new particle of mass $2\,m$ will move in north-east direction?
In diborane, each boron atom uses
A body of mass $m$ rests on a horizontal floor with which it has a coefficient of static friction $\mu$. It is desired to make the body move by applying a minimum possible force $\vec{F}$ as shown in the diagram. The values of $\theta$ and $F_{\min }$ shall be respectively equal to
A body travelling along a straight line traverse one-third the distance with a velocity of $ 5 \,m/s $ . The remaining part of the distance was covered with velocity $ 3 \,m/s $ for half the time and with velocity $ 2 \,m/s $ for the other half of the time. The average velocity of the body over the whole time of motion will be
The wavelength of spectral line coming from a distant star shifts from $600\, nm$ to $600.1\, nm$. The velocity of the star relative to earth is
What is the refractive index of material of a plano convex lens, if the radius of curvature of the convex surface is $10 \,cm$ and focal length of the lens is $30 \,cm$?
Resultant of two vectors $\vec{A}$ and $\vec{B}$ is of magnitude $P$. If $\vec{B}$ is reversed, then resultant is of magnitude $Q$. What is the value of $P^2 + Q^2$ ?
For base station to mobile communication, the required frequency band is
An electron having momentum $2.4 \times 10^{-23} \,kg \,ms ^{-1}$ enters a region of uniform magnetic field of $0.15 \,T$. The field vector makes an angle of $30^{\circ}$ with the initial velocity vector of the electron. The radius of the helical path of the electron in the field shall be
Which of the following releases maximum energy on combustion in $kJ$ per mole state?
Decreasing order of stability of hydrogen halide is
Which one of the following is the most electronegative element configuration?
For the current loops shown in the figure, Kirchhoff's loop rule for the loops $A H D C B A$ and AHDEFGA yields these equations respectively
The ratios of the distance traversed, in successive intervals of time by a body, falling from rest, are
$ \int e^{xloga }e^{x} dx $ is equal to
Which of the following is an outer orbital complex ?
The complex number $ z = \begin{vmatrix}2&3+i&-3\\ 3-i&0&-1+i\\ -3&-1-i&4\end{vmatrix} $ is equal to
Immunoglobulins are proteins that show...... structure.
Grey biotechnology is referred to
How many hydrogen bonded water molecule $ (s) $ are associated with $ CuSO_4 \cdot 5H_2O $ ?
In the following reaction, major product obtained is
Four solutions of $K_{2}SO_{4}$ with the following concentration $0.1\, M,\, 0.01\, m,\, 0.001\, m$ and $m$ are available. The maximum value of van' t Hoff factor, $i$, corresponds to