List of top Physics Questions asked in KCET

Two slabs are of the thicknesses $d_1$ and $d_2$ Their thermal conductivities are $K_1 $ and $K_2$ respectively. They are in series. The free ends of the combination of these two slabs are kept at temperatures $\theta_1 $ and $\theta_2$ . Assume $\theta_1 > \theta_2$ .The temperature $ \theta $ of their common junction is.............
Two simple harmonic motions a re represented by $y_1=5[\sin\,2\pi t+\,\sqrt{3}\,\cos \,2\pi\,t]$ and $y_2=5\sin[2\pi t +\frac{\pi}{4}]$.The ratio of their amplitude is
An electron is moving in an orbit of a hydrogen atom from which there can be a maximum of six transitions. An electron is moving in an orbit of another hydrogen atom from which there can be a maximum of three transitions. The ratio of the velocity of the electron in these two orbits is
A uniform wire of length $L$, diameter $D$ and density $P$ is stretched under a tension $T$. The correct relation between its fundamental frequency $'f'$ , the length $L$ and the diameter $D$ is ............
When a neutron is disintegrated to give $\beta$-particle, ............
The colloidal solution in which both the dispersed phase and dispersion medium arc liquids called
A convex lens made of glass has focal length $0.15\, m$ in air. If the refractive index of glass is $3/2$, and that of water is $4/3$ the focal length of lens when immersed in water is
A beam of light of wavelength 600 nm from a distant source falls on a single slit I mm wide and the resulting diffraction-pattern is observed on a screen 2m away. The distance between the first dark fringes on either side of the central bright fringe is
For the constructive interference the path difference between the two interfering waves must be equal to
A door of $1.6\, m$ wide requires a force of $1 \,N$ to be applied at the free end to open or close it. The force that is required at a point $0.4\, m$ distant from the hinges for opening or closing the door is
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