TS EAMCET Mock Test - 4 - JEE MCQ
30 Questions MCQ Test TS EAMCET Mock Test Series - TS EAMCET Mock Test - 4
The gyromagnetic ratio of an electron of charge e and mass m is equal to
In a mixture of H−He+ gas (He+ is singly ionized He atom) , H atoms and He+ ions are excited to their respective first excited states. Subesquently, H atoms transfer their total excitation energy to He+ ions (by collisions). Assume that the Bohr model of atom is exactly vaild.
Q. The quantum number n of the state finally populated in He+ ions is
The average acceleration vector for a particle having a uniform circular motion is
The maximum energy of photo-electrons emitted in a photo cell is 2eV. For no photo-electrons to reach the anode, the stopping potential should be
A convex lens made of glass has focal length 0.15m in air. If the refractive index of glass is 3/2 and that of water is 4/3, the focal length of lens when immersed in water is
A disc is of mass M and radius r. The moment of inertia of it about an axis tangential to its edge and in plane of the disc or parallel to its diameter is
An alpha nucleus of energy 1/2 mv2 bombards a heavy nuclear target of charge Ze. Then the distance of closest approach for the alpha nucleus will be proportional to
What is the amount of heat liberated (in k.cal) when one mole of aquesous NaOH reacted with one mole of aqueous HCl solution?
A reaction reaches a state of chemical equilibrium only when
Wurtz reaction involves the interaction of alkyl halides in dry ether with
A certain current liberate 0.5 g of hydrogen in 2 h. How many grams of copper can be liberated by the same current flowing for the same time in a copper sulphate solution?
A reversible reaction is said to have attained equilibrium, when
A function f(x) is defined as f (x) = [ 1 − x2 ] , − 1 ≤ x ≤ 1 , where [x] denotes the greatest integer not exceeding x. The function f(x) is discontinuous at x = 0 because
If the sum of first n terms of an A.P. be 3n2 - n and its common difference is 6, then its first term is
The locus of the point of intersection of tangents to the circle x = a cos θ, y = a sin θ at the points, whose parametric angles differ by π/2 is
A and B are square matrices of the same order. Which is correct?
The angle between the two planes 3x-4y+5z=0 and 2x-y-2z=5 is
A biased coin with probability p,0<p<1 of heads is tossed until a head appears for the first time. If the probability that the number of tosses required is even, is 2/5, then p equals
If α , β are two different complex numbers such that | α | = 1, | β | = 1, then the expression | β − α /1 − α β | equals
In two events P(A∪B) = 5/6, P(A) = 5/6, P(B) = 2/3 then A and B are
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