List of top Physics Questions asked in KCET

Kirchhoff's voltage law is based on the law of conservation of

Velocity of light, according to this theory, is greater in a denser medium than in a rarer medium

Numerical aperture of an oil immersion objective using oil of R.I. 1.5 is 0.75. Then, its numerical aperture, when kept in air is

A mirror produces a magnified erect image of an object. The nature of the mirror is

Time of exposure for a photographic print is 10 s, when a lamp of 50 cd is placed at 1 m from it. Then another lamp of luminous intensity I is used, and is kept at 2 m from it. If the time of exposure now is 20 sec, the value of I is (cd)

The number of degrees of freedom for each atom of a monatomic gas is

The magnifying power of a simple microscope M is given by

A stone of mass 1 kg tied to the end of a string of length 1 m, is whirled in a horizontal circle, with a uniform angular velocity 2 radian/sec. The tension of the string is (N)

A light body A and a heavy body B have equal linear momentum. Then the K.E. of the body A

An electric bulb marked $40\, W$ and $200\, V$, is used in a circuit of supply voltage $100\, V$. Now its power is

Colour of light having maximum speed in air is

Two resistances $R_1$ and $R_2$ have effective resistance $R_s$ when connected in series and $R_p$, when connected in parallel. If $R_s R_p=16$ and $R_1/R_2=4$, calculate the values of $R_1$and $R_2$ (in units of resistance).

A point source of light produces an illumination $I$ at a point. When the distance between them is made four times its original value, the intensity at that point becomes

Calculate the current I in the circuit shown

A dark pattern on a China dish appears brighter than the rest of the dish, when it is strongly heated and taken to a dark room. This is an illustration of

A beam of light is passed through a polaroid and the latter is rotated with the beam of light as axis. The intensity of the emergent light varies between a maximum and minimum. Then the light used is

At $0\, K$ temperature, a $p$ - type semiconductor

Siemens is a unit of

AB is a uniform wire of resistance $2000\,\Omega$ and C is the midpoint of Ag^A voltmeter of resistance $1000\,\Omega$ is connected between A arid B.. Then the reading of the voltmeter, when the p.d. is applied across AB is 150 V, is

Optically active substance among the following is

The effective capacitance between the points $A$ and $B$ in the circuit shown in $(\mu F)$ is (capacitance of each capacitor is$(\mu F)$

The focal length of a plano convex lens is equal to its radius of curvature. The value of the refractive index of its material is

The normal magnifying power of a simple microscope is 6. The focal length of the convex lens uses is

Maximum and minimum values of the resultant of two forces acting at a point are $7\, N$ and $3\, N$ respectively. Then smaller force is equal to

Magnetic field due to a long straight conductor of length, carrying current at a point distance from it, is given by