List of top Questions asked in KCET

An object is dropped from rest, its velocity V changes in the following forms

Absolute zero of temperature is

A solution of potassium ferrocyanide would contain.....ions

Red P can be obtained from white P by

Minerals absorbed by root move to the leaf through

An athlete runs along a circular track of diameter 80m. The distance travelled and the magnitude of displacement of the athlete when he covers \(\frac{3^{th}}{4}\) of the circle is ( in m)

The electric current flowing through a given conductor varies with time as shown in the graph below. The number of free electrons which flow through a given cross-section of the conductor in the time interval 0 ≤ t ≤ 20s is

A uniform magnetic field of strength B =2mT exists vertically downwards. These magnetic field lines pass through a closed surface as shown in the figure. The closed surface consists of a hemisphere S₁ , a right circular cone S₂ and a circular surface S₃ . The magnetic flux through S₁ and S₂ are respectively

A cube of side 1 cm contains 100 molecules each having an induced dipole moment of 0.2×10^-6C-m in an external electric field of 4NC^-1. The electric susceptibility of the materials is_____ C2N^-1m^-2

The I-V graph for a conductor at two different temperatures 100°C and 400°C is as shown in the figure. The temperature coefficient of resistance of the conductor is about (in per degree Celsius)

A motor-cyclist moving towards a huge cliff with a speed of 18 kmh^-1, blows a horn of source frequency 325 Hz. If the speed of the sound in air is 330 ms^-1, the number of beats heard by him is

The magnetic field at the centre of a circular coil of radius R carrying current I is 64 times the magnetic field at a distance x on its axis from the centre of the coil. Then the value of x is

An electric blub of 60 W, 120 V is to be connected to 220 V source. What resistance should be connected in series with the bulb, so that the bulb glows properly?

The value of $ ^{49}C_3 ^{48}C_3 ^{47}C_3 ^{46}C_3 ^{45}C_3 ^{45}C_4 $ is

If ΔABC is right angled at C, then the value of tan A + tan B is

A luminous point object O is placed at a distance 2R from the spherical boundary separating two transparent media of refractive indices n₁ and n₂ as shown, where R is the radius of curvature of the spherical surface. If \(n_1=\frac{4}{3}, n_2=\frac{3}{2}\) and R =10 cm, the image is obtained at a distance from P equal to

In an experiment to determine the temperature coefficient of resistance of a conductor, a coil of wire X is immersed in a liquid. It is heated by an external agent. A meter bridge set up is used to determine resistance of the coil X at different temperatures. The balancing points measured at temperatures t₁=0°C and t₂=100°C are 50 cm and 60 cm respectively. If the standard resistance taken out is S=4Ω in both trials, the temperature coefficient of the coil is

If the angle of minimum deviation is equal to angle of a prism for an equilateral prism, then the speed of light inside the prism is _____

If y=2x^3x,then \(\frac{dy}{dx}\) at x=1 is

Which of these enzymes is required to cleave a plasmid?

Following representations P, Q and R denote few steps of Griffith Experiment. Identify the correct one(s)
P. R strain → Inject into mice → Mice die
Q. S strain (Heat killed) → Injected into mice → Mice die
R. R strain → Inject into mice → Mice live

Identify the incorrect match respect to recently extinct animals and their place extinction according to IUCN Red list

Two finite sets have m and n elements respectively. The total number of subsets of the first set is 56 more than the total number of subsets of the second set. The values of m and n respectively are

If $[x]^2 - 5[x] + 6 = 0, $where [x] denotes the greatest integer function, then

If A.M. and G.M. of roots of a quadratic equation are 5 and 4 respectively, then the quadratic equation is