List of top Physics Questions asked in KCET

From the top of a tower of two stones, whose masses are in the ratio $1 : 2$ are thrown one straight up with an initial speed $u$ and the second straight down with the same speed $u$. Then, neglecting air resistance

If a liquid does not wet glass, its angle of contact is

If the potential difference across the internal resistance $r_1$ is equal to the emf $E$ of the battery, then

Four metal conductors having different shapes a) a sphere b) cylindrical c) pear d) Lightening conductor are mounted on insulating stands and charged. The one which is best suited to retain the charge for a longer time is

By using only two resistance coils-singly, in series, or in Parallel-one should be able to obtain resistances of $3, 4, 12$ and $16$ ohms. The separate resistances of the coil are

The magnitude of $I$ in ampere unit is

Out of the following four dimensional quantities, which one qualifies to be called a dimensional constant ?

The wavelength of the radiation emitted by a body depends upon

Which mirror is to be used to obtain a parallel beam of light from a small lamp?

When a body falls in air, the resistance of air depends to a great extent on the shape of the body. $3$ different shapes are given. Identify the combination of air resistances which truly represents the physical situation. (The cross sectional areas are the same)

1. Disc 2. Ball 3. cigar sheped

The induction coil works on the principle of

The cooling in refrigerator is due to

The electric flux for Gaussian surface A that enclose the charged particles in free space is (given $q_1= - 14\, nc, q_2 = 78.85\, nC, q_3 = - 56\, nC$)

A particle on trough of a wave at any instant will come to mean position after time (T=time period)

Which one of the following is not a unit of Young's modulus ?

The temperature of the system decreases in an

Which mirror is to be used to obtain a parallel beam of light from a small lamp ?

A rectangular coil of $300$ turns has an average area of $25\, cm \times 10\, cm .$ The coil rotates with a speed of $50\, cps$ in a uniform magnetic field of strength $4 \times 10^{-2} T$ about an axis perpendicular to the field. The peak value of the induced emf is (in volt)

A bar magnet is equivalent to ............

Blowing air with open mouth is an example of ...........

A body of mass $m$ rests on horizontal surface, the coefficient of friction between the body and the surface is $\mu$. if the mass is pulled by a force $P$ as shown in the figure, the limiting friction between body and surface will be:

Sound waves in air are always longitudinal because,

Oxygen is $16$ times heavier than hydrogen. Equal volumes of hydrogen and oxygen are mixed. The ratio of speed of sound in the mixture to that in hydrogen is _____

A bullet moving with a speed of $100\, ms ^{-1}$ can just penetrate two planks of equal thickness. Then, the number of such planks penetrated by the same bullet when the speed is doubled will be ...........

Effective capacitance between A and B in the figure shown is (all capacitances are in $\mu\, F$ )