List of top Physics Questions asked in UPSEE

What is the voltage across an ideal p-n junction diode for shown circuit ?
Gravitational force acts on a particle due to fixed uniform solid sphere. Neglect other forces. Then particle
An object of mass 26 kg floats in air and it is in equilibrium state. Air density is $1.3 \,kg/m^3$ . The volume of the object is :
??ydraulic lift??works on the basis of
Displacement x versus $t^2$ graph is shown for a particle. The acceleration of the particle is :
Two tuning forks A and B produce 4 beats/sec. Forks B and C produce 5 beats/sec. Forks A and C may produce ??. beats/sec
The one electron species having ionization energy of $54.4\, eVs$
If the current in the toroidal solenoid increases uniformly from zero to $6.0\, A$ in $3.0?s.$ Self inductance of the toroidal solenoid is $40?H$. The magnitude of self induced emf is
A battery of constant voltage is available. How to adjust a system of three identical capacitors to get high electrostatic energy with the given battery
An $1800\, W$ toaster, a $1.3 \, KW$ electric fan and a $100W$ lamp are plugged in the same $120V$ circuit i.e. all the three devices are in parallel. What is the approximate value of the total current (i.e. sum of the current drawn by the three devices) through circuit ?
In a room where the temperature is $30^{\circ}C$ a body cools from $61^{\circ}C$ to $59^{\circ}C$ in 4 minutes. The time taken by the body to cool from $51^{\circ}C$ to $49^{\circ}C$ will be about
Figure shows the total acceleration $a = 32m/s^2$ of a moving particle moving clockwise in a circle of radius $R=1m$. What are the centripetal acceleration and speed $v$ of the particle at given instant?
A projectile is projected with an initial velocity $\left(4\hat{i}+5\hat{j}\right)m/s$. Here $\hat{j}$ is the unit vector directed vertically upwards and unit vector $\hat{i}$ is in the horizontal direction .Velocity of the projectile (in $m/s$) just before it hits the ground is
A small object is placed $50\, cm$ to the left of a thin convex lens of focal length $30\, cm$. A convex spherical mirror of radius of curvature $100\, cm$ is placed to the right of the lens at a distance $50\, cm$. The mirror is tilted such that the axis of the mirror is at an angle $\theta=30^{\circ}$ to the axis of the lens, as shown in the figure. If the origin of the coordinate system is taken to be at the centre of the lens, the coordinates (in $cm$ ) of the point $(x, y)$ at which the image is formed are
A force $F = 75\, N$ is applied on a block of mass $5\, kg$ along the fixed smooth incline as shown in figure. Here gravitational acceleration $g = 10m/s^2$. The acceleration of the block is
A particle enters uniform constant magnetic field region with its initial velocity parallel to the field direction. Which of the following statements about its velocity is correct? (neglect the effects of other fields)
A string fixed at both ends has a standing wave mode for which the distances between adjacent nodes is $18\, cm$. For the next consecutive standing wave mode distances between adjacent nodes is $16\, cm$. The minimum possible length of the string is
A small bead of mass $M$ slides on a smooth wire that is bent in a circle of radius $R$. It is released at the top of the circular part of the wire (point A in the figure) with a negligibly small velocity. Find the height H where the bead will reverse direction.
A Proton and an alpha particle both are accelerated through the same potential difference. The ratio of corresponding de-Broglie wavelengths is
A particle is moving in translatory motion. If momentum of the particle decreases by $10\%$, kinetic energy will decrease by
Which of the following Material has lowest resistivity ?
Which of the statement is incorrect about the simple microscope?
Two polaroids $A$ and $B$ are placed with their polaroid axes $30^{\circ}$ to each other as shown in the figure. A plane polarized light passes through the polaroid $A$ and after passing through it, intensity of light becomes $I_0$.What is the intensity of finally transmitted light after passing through the polaroid $B$ ?
An incompressible non viscous fluid flows steadily through a cylindrical pipe which has radius $2R$ at point $A$ and radius $R$ at point $B$ farther along the flow direction. If the velocity of the fluid at point $A$ is $V$, its velocity at the point $B$ will be
Magnitude of binding energy of satellite is $E$ and kinetic energy is $K$ .The ratio $E/K$ is