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TS EAMCET Mock Test - 10 - JEE MCQ


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30 Questions MCQ Test - TS EAMCET Mock Test - 10

TS EAMCET Mock Test - 10 for JEE 2024 is part of JEE preparation. The TS EAMCET Mock Test - 10 questions and answers have been prepared according to the JEE exam syllabus.The TS EAMCET Mock Test - 10 MCQs are made for JEE 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for TS EAMCET Mock Test - 10 below.
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TS EAMCET Mock Test - 10 - Question 1
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A zener diode works on the principle of

TS EAMCET Mock Test - 10 - Question 2
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A hollow metal sphere of radious 10 cm is charged such that the potential on its surface is 80V. The potential at the centre of the sphere is

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TS EAMCET Mock Test - 10 - Question 3
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Three different capacitors are connected in series. Then:

TS EAMCET Mock Test - 10 - Question 4
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Which of the following forms a perfect image free from all aberrations?
TS EAMCET Mock Test - 10 - Question 5
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The flux linked with a coil at any instant t is given by
φ = 10t2 - 50t + 250
The induced emf at t = 3 s is
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According to Lenz's law,

TS EAMCET Mock Test - 10 - Question 6
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The working of a dynamo is based on principle of
TS EAMCET Mock Test - 10 - Question 7
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In the given circuit, the current drawn from the source is
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Impedence of the circuit,

Peak value of the current,


Hence, r.m.s. value of the current is

TS EAMCET Mock Test - 10 - Question 8
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Which of the following does not obey the phenomenon of mutual induction?
TS EAMCET Mock Test - 10 - Question 9
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The de-Broglie wavelength of a particle moving with a velocity 2 .25 x 108 m s-1 is equal to the wavelength of a photon. The ratio of kinetic energy of the particle to the energy of the photon is [ velocity of light = 3 x 108 m s-1  ]
Detailed Solution for TS EAMCET Mock Test - 10 - Question 9

From Compton effect
λ = h/p = c/v [From de-Broglie wavelength]
c p = h v

TS EAMCET Mock Test - 10 - Question 10
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The internal resistance of a primary cell is 4 Ω. It generates a current of 0.2 A in an external resistance of 21 Ω. The rate at which chemical energy is consumed in providing the current is
TS EAMCET Mock Test - 10 - Question 11
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Which of the following Fischer's projection formula is identical to D-glyceraldehyde ?
TS EAMCET Mock Test - 10 - Question 12
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The IUPAC name of [Cr(NH₃)₆]3+ is
TS EAMCET Mock Test - 10 - Question 13
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If the pressure on a NaCl structure is increased, then its co-ordination number will
TS EAMCET Mock Test - 10 - Question 14
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Which of the following is not correct?
TS EAMCET Mock Test - 10 - Question 15
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The most suitable reagent for the following conversion, is:
Detailed Solution for TS EAMCET Mock Test - 10 - Question 15

(i) Na/ Liquid NH3 (Birch reduction) it reduces non-terminal alkynes into alkene (trans/anti addition)
(ii) H2/Pd−C, quinoline (lindlar catalyst) reduces alkyne into alkene by syn addition. This will give the required product.
(iii) Zn/HCl is Clemmensen reduction which reduced carbonyl into an alkene.
(iv) Hg+2/H⊕, H2O is an electrophilic addition reaction, which converts alkyne into ketone.

TS EAMCET Mock Test - 10 - Question 16
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The hypothetical complex triamminediaquachloridocobalt(III) chloride can be represented as -
Detailed Solution for TS EAMCET Mock Test - 10 - Question 16

The hypothetical complex chlorodiaquatriamminecobalt(III) chloride is represented as
[Co (NH3)3(H2O)2Cl] Cl2

TS EAMCET Mock Test - 10 - Question 17
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Scurvy is caused due to the deficiency of vitamin
TS EAMCET Mock Test - 10 - Question 18
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When 20 g of naphthoic acid (C11H8O2) is dissolved in 50 g50 g of benzene (kf = 1.72 K kg mol−1), a freezing point depression of 2 K is observed. Calculate the Van't Hoff factor (i) in this case:
Detailed Solution for TS EAMCET Mock Test - 10 - Question 18

Actual molecular weight of naphthoic acid (C11H8O2) = 172
Molecular mass (calculated) 


= 0.5

TS EAMCET Mock Test - 10 - Question 19
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The colour of p-aminoazobenzene is
TS EAMCET Mock Test - 10 - Question 20
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Enzymes, in the living systems
TS EAMCET Mock Test - 10 - Question 21
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An aldehyde on oxidation gives
TS EAMCET Mock Test - 10 - Question 22
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The radius of the sphere which passes thro' the points (0,0,0),(1,0,0),(0,1,0) and (0,0,1) is
TS EAMCET Mock Test - 10 - Question 23
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The triangle formed by the tangent to the curve f(x) = x2 + bx - b at the point (1, 1) and the co-ordinate axis, lies in the first quadrant. If its area is 2, then the value of b is
Detailed Solution for TS EAMCET Mock Test - 10 - Question 23

The slope of the tangent at the point (1, 1) is y' = 2 + b.
Hence, the equation of the tangent is:
y = (2 + b)x + c
As the line satisfies the point (1, 1), the value of c = -(1 + b)
Equation of tangent is y = (2 + b)x - (1 + b)
As the triangle formed will be a right-angled triangle made up of intercepts of the tangent,
hence the intercepts are
y = -(1 + b)
x = 
Area of triangle = ½ x x-intercept x y-intercept = 2
=> ½  -(1 + b)   = 2
=> b = -3

TS EAMCET Mock Test - 10 - Question 24
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All the roots of the equation zn cos θo + zn − 1 cos θ1 + … + cos θn = 2 , where θo , θ1 , θ2 , … , θn ∈ R will satisfy
TS EAMCET Mock Test - 10 - Question 25
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The value of 
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 (differentiating numerator and denominator n times for L'Hospital's rule)

TS EAMCET Mock Test - 10 - Question 26
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If x = 1998!, then value of the expression
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TS EAMCET Mock Test - 10 - Question 27
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If A,B,C are matrices of order nxn then (ABC)'=
TS EAMCET Mock Test - 10 - Question 28
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∫x cos x dx =
TS EAMCET Mock Test - 10 - Question 29
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The marks obtained by a student of Class X in first and second unit test are 35 and 21, respectively. Find the minimum marks he should get in the annual examination to have an average of at least 30 marks.
Detailed Solution for TS EAMCET Mock Test - 10 - Question 29

Let x be the marks obtained by student in the annual examination. Then

TS EAMCET Mock Test - 10 - Question 30
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The real value of θ for which the expression  is a real number is
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=  + i
 is purely real.
  = 0
 cos = 0
  =  , n  Z

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