List of top Physics Questions asked in KCET

A cyclotron is used to accelerate
A transformer is used to light $100 \,W - 110\, V$ lamp from $220\, V$ mains. If the main current is $0.5\, A$, the efficiency of the transformer is
The efficiency of a Carnot engine which operates between the two temperature $T_1 = 500\, K$ and $T_2 = 300\, K$ is
Moment of Inertia of a thin uniform rod rotating about the perpendicular axis passing through its centre is $I$. If the same rod is bent into a ring and its moment of inertia about its diameter is $I'$, then the ratio ${\frac {I}{I'}}$ is
A force $F=5 \hat{i}+2\hat{j}-5 \hat{k}$ acts on a particle whose position vector is $r=\hat{i}-2 \hat{j}+\hat{k}$ What is the torque about the origin?
A person is driving a vehicle at uniform speed of $5\, ms ^{-1}$ on a level curved track of radius $5\, m .$ The coefficient of static friction between tyres and road is $0.1 .$ Will the person slip while taking the turn with the same speed ? Take $g =10\, ms ^{-2}$ Choose the correct statement.
The equivalent resistance of two resistors connected in series is $6\, \Omega$ and their parallel equivalent resistance is $\frac{4}{3} \Omega$. What are the values of resistances ?
Period of geostationary satellite is
A flow of liquid is streamline if the Reynolds number is
A plane electromagnetic wave of frequency $20\, MHz$ travels through a space along x- direction. If the electric field vector at a certain point in space is $6\, V$ $m^{-1}$, what is the magnetic field vector at that point ?
A $10\,kg$ metal block is attached to a spring of spring constant $1000 \, nm^{-1}$. A block is displaced from equilibrium position by $10\,cm$ and released. The maximum acceleration of the block is
Steam at $100^{\circ} C$ is passed into $20 g$ of water acquires a temperature of $80^{\circ} C$, the mass of water presents will be [Take specific heat of water $1 cal g ^{-1} c ^{-1}$ latent heat of steam $=540 g ^{-1}$ ]
A tuned amplifier circuit is used to generate a carrier frequency of $2\, MHz$ for the amplitude modulation. The value of $\sqrt{LC}$ is
A stone is thrown vertically at a speed of $30\, m$ $s^{-1}$ making an angle of $45^\circ$ with the horizontal. What is the maximum height reached by the stone ? Take $g \,= \,10\, ms^{-2}$.
A rotating wheel changes angular speed from $1800\,rpm$ to $3000\, rpm$ in $20\,s$. What is the angular acceleration assuming to be uniform ?
What is the value of shunt resistance required to convert a galvanometer of resistance $100$ $\Omega$ into an ammeter of range $1\,A$ ? Given : Full scale deflection of the galvanometer is $5 \,mA$
What is a period of revolution of earth satellite ? Ignore the height of satellite above the surface of earth. Given : (1) The value of gravitational acceleration $g= 10\,ms^{-2}$ (2) Radius of earth $R_E = 6400\, km$. Take $\pi = 3.14$
In anomalous expansion of water, at what temperature, the density of water is maximum ?
A solenoid of inductance $2H$ carries a current of $1A$. What is the magnetic energy stored in a solenoid ?
A spherical conductor of radius $2 \,cm$ is uniformly charged with $3 \,nC$. What is the electric field at a distance of $3\, cm$ from the centre of the sphere ?
A pipe $30\, cm$ long, is open at both ends. Which harmonic mode of the pipe resonates a $1.1\, kHz$ source? (Speed of sound in air = $330 \,m \,s^{-1})$
A circular coil of radius $10 \,cm$ and $100$ turns carries a current $1\,A$. What is the magnetic moment of the coil ?
A carbon film resistor has colour code Green Black Violet Gold. The value of the resistor is
The relation between half life $(T)$ and decay constant $(\lambda)$ is
A cycle tyre bursts suddenly. What is the type of this process