List of top Physics Questions asked in BHU UET

A clock hung on a wall has marks instead of numerals on its dial on the adjoining wall there is a plane mirror and the image of the clock in the mirror indicates the time $7 : 10$. Then the time on the clock is:
A current of $1 \,A$ is flowing on the sides of an equilateral triangle of sides $ 4.5\times {{10}^{-2}}\,m $ . The magnetic field at the centroid of the triangle is
All ball of mass $ m_{1} $ collides elastically and head on with another ball of mass $ m_{2} $ initially at rest. In which of the following cases transfer of momentum will be maximum?
A synchronous relay satellite reflects TV signals and transmits TV programmer from one pan of the world to the other because its:
If a ladder weighing $250\, N$ is placed against a smooth vertical wall having coefficient of friction between it and floor is $ 0.3 $, then what is the maximum force of friction available at the point of contact between the ladder and the floor?
Two particles having position vectors $\vec{ r _{1}}=(3 \hat{ i }+5 \hat{ j }) m $ and $\vec{ r _{2}}=(-5 \hat{ i }-3 \hat{ j }) m $ are moving with velocities $\vec{ v _{1}}=(4 \hat{ i }+3 \hat{ j }) ms ^{-1}$ and $\vec{ v }_{2}=(a \hat{ i }+7 \hat{ j }) ms ^{-1}$. If they collide after $2\, s$, the value of $a$ is
Each atom of an iron bar $(5\, cm \times 1\, cm \times 1\, cm )$ has a magnetic moment $1.8 \times 10^{-23}\, Am ^{2}$. Knowing that the density of iron is $7.78 \times 10^{3}\, kg\, m ^{-3}$, atomic weight is $56$ and Avogadro's number is $6.02 \times 10^{23}$ the magnetic moment of bar in the state of magnetic saturation will be
A particle moves through angular displacement $ \theta $ on a circular path of radius $r$. The linear displacement will be :
From the top of a building a ball is dropped while another is thrown horizontally at the same time. Which ball will strike the ground first?
A charged oil drop is suspended in a uniform electric field of $3 \times 10^{4}\, V / m$ so that it neither falls nor rises. The charge on the drop will be (take the mass of the drop is $9.9 \times 10^{-15} \,kg$ and $g=10 \,ms ^{-2}$ )
In a hall, a person receives direct sound waves from a source $120 \,m$ away. He also receives waves from the same source which reach him after being reflected from the $25\, m$ high ceiling at a point half-way between them. The two waves interfere constructively for wavelengths (in metre) of
When a rod is heated but prevented from expanding the stress developed is independent of:
A copper wire and a steel wire of the same diameter and length are joined end to end and a force is applied which stretches their combined length by $1 \,cm$. Then the two wires will have:
The work done by a particle moving with a velocity of $0.7\, c$ (where $c$ is the velocity of light) in empty space free of electromagnetic field and far away from all matter is :
An engine is moving on a circular path of radius $100\, m$ with a speed of $20 \,m / s$. What will be the frequency observed by an observer standing stationary at the centre of rircular path when the engine blows a whistle of frequency $500 \,Hz$ ?
A body of mass $2\, kg$ has an initial velocity of $3 m / s$ along $OE$ and it is subjected to a force of $4\, N$ in a direction perpendicular to $O E$. The distance of body from $O$ after $4 s$ will be :
The velocity $v$ (in $cm / s$ ) of a particle is given in terms of time $t$ (in seconds) by the equation, $v=a t+\frac{b}{t+c}$ The dimensions of $a, b$ and $c$ are :