List of top Questions asked in KCET- 2019

Due to Doppler?? effect the shift in wavelength observed is 0.1 ? for a star producing wavelength 6000 ?. Velocity of recession of the star will be

If the value of a third order determinant is $16$, then the value of the determinant formed by replacing each of its elements by its cofactor is

The equation of the curve passing through the point (1, 1) such that the slope of the tangent at any point (x, y) is equal to the product of its co-ordinates is

The third term of a G.P. is 9. The product of its first five terms is

A girl of height $150 \,cm$ with her eye level at $140 \,cm$ stands in front of plane mirror of height $75 \,cm$ fixed to a wall. The lower edge of the mirror is at a height of $85 \,cm$ above her feet level. The height of her image the girl can see in the mirror is

Consider the following statements i, ii and iii regarding criteria for essentiality of the nutrients in plants: i. The presence of elements is must for plants to complete their life cycle. ii. The role of the element can be replaced by another element. iii. The element must be directly involved in the metabolism of the plant. Choose the correct statement/s :

Give: E0Mn+7|Mn+2 = 1.5 V and E0Mn+4|Mn+2 = 1.2 V, then E0Mn+7|Mn+4 is

If cos x = |sin x| then, the general solution is

A man speaks truth 2 out of 3 times. He picks one of the natural numbers in the set S = {1, 2, 3, 4, 5, 6, 7} and reports that it is even. The probability that it is actually even is

If $A = \{ x | x \in N, x \le 5 \}, B = \{ x | x \in Z, x^2 - 5x + 6 = 0\}$, then the number of onto functions from A to B is

If $| 3x -5| \le 2$, then

$\sqrt{3}\, cosec \,20^{\circ} - \sec\, 20^{\circ}$ =

The interval in which the function $f(x) = x^3 - 6x^2 + 9x + 10$ is increasing in

The domain of the function f : R $\to$ R defined by $f(x) = \sqrt{x^2 - 7x + 12} $ is

If $a + \frac{\pi}{2} < 2 \tan^{-1} x + 3 \cot^{-1} x < b $ then 'a' and 'b' are respectively.

An object with mass 5 kg is acted upon by a force, $\vec{F}=\left(-3\widehat{i}+4\widehat{j}\right)N$. If its initial velocity at t = 0 is $\vec{v}=\left(3\widehat{i}+12\widehat{j}\right)m/s$ , the time at which it will just have a velocity along y-axis is

Match the following pKa values:

On the set of positive rationals, a binary operation * is defined by a * b = $\frac{2ab}{5}$ . If 2 * x = $3^{-1}$ then x =

If $P$ and $Q$ are symmetric matrices of the same order then $PQ - QP$ is

The eccentricity of the ellipse $9x^2 + 25y^2 = 225$ is

The distance of the point (1, 2, 1) from the line $\frac{x-1}{2} = \frac{ y-2}{1}=\frac{ z-3}{2} $ is

According to Human Genome Project (HGP), the total number of genes in human genome is estimated at 30,000 the number of genes present on Y-chromosome are

Identify the cells represent as P, Q, R and S in the given schematic representation of spermatogenesis.

Choose the correct statement from the following: