AP EAMCET Mock Test - 7 - JEE MCQ

A wooden block, with a coin placed on its top, floats in water as shown in the figure. The distance h and l are shown there. After sometime, the coin falls into the water. Then,
:

In the Wheatstone's bridge shown below, in order to balance the bridge, we must have

An ammeter and a voltmeter of resistance R are connected in series to an electric cell of negligible internal resistance. Their readings are A and V, respectively. If another resistance R is connected in parallel with the voltmeter, then

A variable force, given by the 2-dimensional vector  acts on a particle. The force is in newton and x is in metre. What is the change in the kinetic energy of the particle as it moves from the point with coordinates (2, 3) to (3, 0)? (The coordinates are in metres)

The base-catalysed aldol condensation will not occur with

In the following reaction, which choice has value twice that of the equivalent mass of the oxidising agent SO₂ + H₂O → 3S + 2H₂O

Given the bond energies of N ≡ N , H − H and N − H bonds as 941.5, 433 and 391 kJ mole^-1 respectively, the enthalpy of reaction N₂ g + 3 H₂ g → 2 NH₃ g is

The interionic distance for cesium chloride cystal will be

Rancidity of butter is due to the formation of

Ethyl alcohol reacts with acetyl chloride to form

Aldol condensation will not be observed in

Which of the following reacts with water at a high rate?

For an ideal gas, the relation between the enthalpy change and internal energy change at constant temperature is given by

Which of the following shows maximum no. of oxidation states?

The sum of n terms of the series 1 + (1 + 3) + (1 + 3 + 9) + (1 + 3 + 9 + 27) + ...... is

The period of the function f(x) = |sin x| + |cos x| is

In ΔABC, if then a + c is equal to

If M denotes the mid-point of the line joining  then the equation of the plane through M & perpendicular to AB is

Let lx+my+n=0 represents a chord of the ellipse b²x²+a²y²=a²b², If the eccentric angles of end points of the chord differ by 90°, then

Three numbers from {1, 2, 3, … 10} are chosen at random without replacement. The probability that the minimum of the chosen numbers is 3 or the maximum of the chosen numbers is 7 is

The function f:R→R satisfies  for all real x. Given that f(1)=1 and f′′(1)=8, compute the value of f′(1)+f′′(1).

All the real values of m such that both roots of the equation x² − 2mx + m² − 1 = 0 are greater than −2 and less than 4 lies in

Nitika chose 12 numbers randomly. The sum of 12 numbers is 18 and the sum of their square is 30. What is the variance of the series?

In the given figure, OABC is a rectangle. If  || m, what is the area of the rectangle OABC?

If the roots of the equation x² - bx + c = 0 are two consecutive integers, then b² - 4c is equal to

If P represents z=x+iy in the argand plane  then locus of P is 

Let f:(−∞,0]→[1,∞) be defined a  then f(x) is