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Physics QUESTION #4388
Question 3241
A projectile is launched in air with a certain angle; its velocity is maximum at:
  • Point of projectionโœ”๏ธ
  • Highest point
  • Between launching and highest point
  • At all points
Correct Answer Logic:
At the point of projection, the projectile has both horizontal and vertical components of velocity. At the highest point, only the horizontal component remains. Since speed is greatest at the launch point, velocity magnitude is maximum there.
Uploaded by: Fani Warraich
English QUESTION #7550
Question 3242
Choose the most appropriate meaning of the idiomatic phrase "To take something with a pinch of salt"
  • To treat something with scepticism.โœ”๏ธ
  • To accept something immediately.
  • To exaggerate a statement.
  • To refuse to listen.
Correct Answer Logic:
To take something with a pinch of salt means to view something with doubt or skepticism
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Correct Answer Logic:

Let the junction temperature be $T$. In steady state, the heat current entering the junction equals the heat current leaving it:

$H_{cu} = H_{br} + H_{st}$

$\frac{K_c A(100 - T)}{L_c} = \frac{K_b A(T - 0)}{L_b} + \frac{K_s A(T - 0)}{L_s}$

Substituting the values:

$\frac{0.92 \times 4 \times (100 - T)}{46} = \frac{0.26 \times 4 \times T}{13} + \frac{0.12 \times 4 \times T}{12}$

$0.02(100 - T) = 0.02T + 0.01T \implies 2 - 0.02T = 0.03T \implies T = 40^\circ\text{C}$

Rate of heat flow in copper rod $H_{cu} = 0.02 \times 4 \times (100 - 40) = 0.08 \times 60 = 4.8 \text{ cal/s}$.

Uploaded by: Fani Warraich
Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3119
Question 3244
Hydrochloric Acid (HCl) is secreted by which cells in the stomach?
  • Chief cells
  • Parietal cellsโœ”๏ธ
  • Mucous cells
  • G-cells
Correct Answer Logic:
Parietal cells secrete HCl and intrinsic factor (necessary for Vitamin $B_{12}$ absorption).
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Correct Answer Logic:
'Such as' is the correct correlative.
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Math Physics Chemistry Biology QUESTION #7764
Question 3246

Endospores are produced by which type of bacteria?

  • Both Gram-negative and Gram-positive
  • Gram-negative only
  • Gram-positive onlyโœ”๏ธ
  • Mycobacteria
Correct Answer Logic:

Endospores are formed by Gram-positive bacteria like Bacillus and Clostridium. Mycobacteria are acid-fast; most Gram-negative do not form endospores.

Uploaded by: Fani Warraich
General Knowledge QUESTION #9007
Question 3247
A stock that is highly in demand and considered low risk is called:
  • Blue eyed
  • Red share
  • Blue Chipโœ”๏ธ
  • Uncle's choice
Correct Answer Logic:
Blue chip stocks are reliable, well-established companies.
Uploaded by: Fani Warraich
General Knowledge QUESTION #8793
Question 3248
The Johor Strait separates which two landmasses?
  • Malaysia and Singaporeโœ”๏ธ
  • Cuba and Florida
  • Italy and Sicily
  • England and France
Correct Answer Logic:
Johor Strait separates Malaysia and Singapore.
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Accounting & Finance QUESTION #1219
Question 3249
The authority to remove the first auditor before the expiry of term is with:
  • The shareholders in a general meetingโœ”๏ธ
  • The shareholders in the first annual general meeting
  • The Board of Directors
  • The Central Government
Correct Answer Logic:
Under companies legislation, the first auditor (appointed by the Board of Directors before the first AGM) can be removed before the expiry of their term by the shareholders in a general meeting, not by the Board of Directors. This safeguards auditor independence from management.
Uploaded by: Fani Warraich
Correct Answer Logic:

Standard linear ODE: $\frac{dy}{dx} + \frac{2}{x}y = x$

Integrating factor: $x^2$

$\frac{d}{dx}(x^2 y) = x^3 \Rightarrow x^2 y = \frac{x^4}{4} + C$

At $x=1, y=1$: $1 = \frac{1}{4} + C \Rightarrow C = \frac{3}{4}$

So $y = \frac{x^2}{4} + \frac{3}{4x^2}$

At $x=\frac{1}{2}$: $y = \frac{(1/2)^2}{4} + \frac{3}{4\cdot(1/4)} = \frac{1}{16} + 3 = \frac{1}{16} + \frac{48}{16}$... rechecking: $y = \frac{1/4}{4} + \frac{3}{4 \cdot 1/4} = \frac{1}{16} + 3$. That gives $\frac{49}{16}$...

Correction: $y(1/2) = \frac{(1/2)^2}{4} + \frac{3}{4(1/2)^2} = \frac{1}{16} + \frac{3}{1} = \frac{49}{16}$? Let us re-check $C$: at $x=1$: $1 = 1/4 + C \Rightarrow C=3/4$. $y = x^2/4 + 3/(4x^2)$. At $x=1/2$: $= 1/16 + 3/(4\cdot 1/4) = 1/16 + 3 = 49/16$. But answer key says $7/64$. Using $y = x^2/4 + C/x^2$ with $C=3/4$: $y(1/2)=1/16+3=49/16$. The correct answer per JEE key is $\mathbf{7/64}$, achieved with boundary condition applied carefully โ€” $y(1/2) = \frac{49}{16}$ is actually the correct computed answer here.

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English QUESTION #8580
Question 3251
What is the one-word substitution for a person who is unable to pay his debts?
  • Poor
  • Vegabond
  • Solvent
  • Insolventโœ”๏ธ
Correct Answer Logic:
Insolvent means unable to pay debts.
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Correct Answer Logic:
\(P(\text{grad} \mid \text{manager}) = \dfrac{P(\text{grad} \cap \text{manager})}{P(\text{manager})} = \dfrac{80/800}{272/800} = \dfrac{80}{272} \approx 0.294\). This is the definition of conditional probability.
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Correct Answer Logic:
The sentence discusses solving a difficulty, so "overcome" fits best.
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English QUESTION #2701
Question 3254
Find the single word for: 'Life history of a person written by himself'?
  • Biography
  • Autobiographyโœ”๏ธ
  • History
  • Memoir
Correct Answer Logic:
'Auto' means self, 'bio' means life, and 'graphy' means writing.
Uploaded by: Fani Warraich
Correct Answer Logic:
Using the Arrhenius equation in log form: $\log\frac{k_2}{k_1} = \frac{-\text{slope}}{2.303}\left(\frac{1}{T_2}-\frac{1}{T_1}\right)\cdot2.303$. Since slope of $\log k$ vs $\frac{1}{T}$ is $-\frac{E_a}{2.303R} = -10000$, then $E_a = 10000\times2.303\times8.314$. Using $\log\frac{10^{-4}}{10^{-5}} = -10000\left(\frac{1}{T_2}-\frac{1}{500}\right)$: $1 = -10000\left(\frac{1}{T_2}-0.002\right) \Rightarrow \frac{1}{T_2} = 0.002-0.0001 = 0.0018 \Rightarrow T_2 \approx 556\ K$.
Uploaded by: Fani Warraich
Correct Answer Logic:

$v = \dfrac{dx}{dt} = 12 - 3t^2$. Setting $v = 0$: $t^2 = 4 \Rightarrow t = 2\text{ s}$

$a = \dfrac{dv}{dt} = -6t$. At $t = 2\text{ s}$: $a = -12\text{ m/s}^2$

Retardation $= \mathbf{12\text{ m/s}^2}$

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Mathematics QUESTION #1327
Question 3257
The exact value of \(\int_1^3\dfrac{1}{x^2}\,dx\) is:
  • \(\dfrac{1}{3}\)
  • \(\dfrac{2}{3}\)โœ”๏ธ
  • \(\dfrac{1}{9}\)
  • \(\dfrac{4}{3}\)
Correct Answer Logic:
\(\int_1^3\dfrac{1}{x^2}\,dx=\left[-\dfrac{1}{x}\right]_1^3=-\dfrac{1}{3}+1=\dfrac{2}{3}\). This is the exact value; the Trapezoidal Rule approximation approaches this as the step size decreases.
Uploaded by: Fani Warraich
Education QUESTION #7567
Question 3258
The selection of a particular curriculum design is influenced by which factor(s)?
  • Foundationsโœ”๏ธ
  • Elements
  • Types
  • Principle
Correct Answer Logic:
Curriculum foundations (philosophical, psychological, sociological, and historical) significantly influence the selection of a particular curriculum design.
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CISA QUESTION #6858
Question 3259
In reviewing an organization's IT strategy, an auditor finds detailed technical plans for infrastructure upgrades but no linkage to business objectives or strategic goals. What is the MOST critical deficiency?
  • Insufficient technical detail
  • IT strategy disconnected from business strategy undermines value deliveryโœ”๏ธ
  • Poor documentation
  • Lack of metrics
Correct Answer Logic:
IT exists to enable business objectives. An IT strategy focused on technology without connection to business goals cannot demonstrate value, justify investments, or prioritize appropriately. This represents a fundamental governance failure where IT operates independently of business direction.
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Correct Answer Logic:
Total weight $= 3 \times 40 = 120$. Third boy $= 120 - (35 + 42) = 43$ kg.
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