List of top Physics Questions asked in KCET

An electric heater rated $220\, V$ and $550\, W$ is connected to $AC$ mains. The current drawn by it is

According to Newton's Corpuscular Theory, the speed of light is

Hydrogen atom from excited state comes to the ground state by emitting a photon of wavelength $\lambda$. If $R$ is the Rydberg constant, the principal quantum number $'n'$ of the excited state is

Sound waves transfer

The magnetic dipole moment of a current loop is independent of

Near a circular loop of conducting wire as shown in the figure an electron moves along a straight line. The direction of the induced current if any in the loop is

The angle of minimum deviation for an incident light ray on an equilateral prism is equal to its refracting angle. The refractive index of its material is

A graph of pressure versus volume for an ideal gas for different processes is as shown. In the graph curve $OC$ represents

The work done by a force acting on a body is as shown in the graph. The total work done in covering an initial distance of $20\,m$ is

The resistance of a wire at $300 \, K$ is found to be $0.3 \, \Omega$. If the temperature co-efficient of resistance of wire is $1.5 \times 10^{-3} K^{-1}$, the temperature at which the resistance becomes $0.6\, \Omega$ is

Three concurrent co-planar forces $1\,N, 2\,N$ and $3\,N$ acting along different directions on a body

In fog, photographs of the objects taken with infra-red radiations are more clear than those obtained during visible light because

The moment of inertia of a circular ring of radius $'r'$ and mass $'M'$ about diameter is

A body of mass $'m'$ moving along a straight line covers half the distance with a speed of $2\, ms^{-1}$. The remaining half of the distance is covered in two equal time intervals with a speed of $3\, ms^{-1}$ and $5\, ms^{-1}$ respectively. The average speed of the particle for the entire journey is

Two solid pieces, one of steel and the other of aluminium when immersed completely in water have equal weights. When the solid pieces arc weighed in air

In ruby laser, the stimulated emission is due to transition from

The magnetic Lorentz force experienced by a charge q, entering a magnetic field B with a velocity v is

Two sources are said to be coherent if they produce waves

Two luminous point sources separated by a certain distance are at $10 \, km$ from an observer. If the aperture of his eye is $2.5 \times 10^{-3}\,m$ and the wavelength of light used is $500 \, nm$, the distance of separation between the point sources are just seen to be resolved is

Continuous emission spectrum is produced by

If the earth shrinks such that its mass does not change but radius decreases to one quarter of its original value then one complete day will take

Hydrogen atom does not emit $X-rays$ because

The equivalent resistance between the points $A$ and $B$ will be (each resistance is 15 $\Omega$)

A simple pendulum is suspended from the ceiling of a lift. When the lift is at rest its time period is $T$. With what acceleration should the lift be accelerated upwards in order to reduce its period to $T/2$ ? (g is acceleration due to gravity).

The magnetic field at the centre of a circular current carrying conductor of radius $r$ is $B_c$. The magnetic field on its axis at a distance $r$ from the centre is $B_a$. The value of $B_c : B_a$ will be