List of top Physics Questions asked in KCET

n identical mercury droplets charged to the same potential $V$ coalesce to form a single bigger drop. The potential of new drop will be

The kinetic energy of a body becomes four times its initial value. The new linear momentum will be

A car starts with acceleration $2\,m s^{-2}$. A scooterist starts towards the car with a velocity of $20\,ms^{-1}$. If the scooterist was $96\,m$ behind the car at the start, the time in which he overtakes the car is

$10\,CC$ of hydrogen and oxygen each are kept in separate flasks. Then the correct statement is

In Young's double slit experiment the separation between the slits is halved and the distance between the slits and the screen is doubled. The fringe width will

Equation of progressive wave is given by $y=a \, \sin\,\pi(40t-x)$ where $a$ and $x$ are in metre and $t$ in second. The velocity of the wave is (m/s)

A particle starts from (0,0) and moves along y-axis to a point (0,26) m and then to (0, -26) m. The ratio between distance and displacement is

Waves that cannot be polarised are

In a charged capacitor the energy is stored in

Radio waves and visible light in vacuum have

The resistance of an ideal ammeter is

After an interval on one day ${1/6}^{th}$ of the initial amount of a radioactive material remains in a sample. Then its half life is

An atom of mass number A and atomic number Z emits successively an $\alpha$-particle, a $\beta$-particle and a $\gamma$-ray. The mass number and atomic number of the end product are

The relation between $\alpha\,and\,\beta$ parameters of a transistor is given by

Relative permeability of iron is 5500. Its magnetic susceptibility is

In the Nuclear reaction given below : $_7N^{14}+2He^4\rightarrow\,X+_1H^1$, the nucleus X is

The phenomenon of diffraction of light was discovered by

In a cinema hall the distance between the projector and the screen is increased by 2 %. Now the intensity of illumination of the screen

A mirror forms a real image of unit magnification. Its nature is

Biaxial crystal among the following is

Mass of a photon of frequency v is given by

A body is projected vertically upwards from the surface of a planet of radius $R$ with a velocity equal to half the escape velocity for that planet. The maximum height attained by the body is

A mirror forms a real image of unit magnification, Its nature is

Electric charges $+ 10\mu C, + 5\mu C, - 3 \mu C\, and\, + 8 \mu C$ are placed at the comers of a square of side $\sqrt2\,m$. The potential at the centre of the square (V) is

Mean life of a radioactive element is one year. Then its half life is (in year)