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Physics QUESTION #7232

Question 2561

The dimensional formula of polarisation (electric dipole moment per unit volume) is:

$[L^{-2}T^1A^1]$✔️
$[L^2T^1A^{-1}]$
$[L^{-2}T^1A^1]$
$[L^{-3}T^{-1}A^1]$

Correct Answer Logic:

Electric polarisation $P = \dfrac{\text{dipole moment}}{\text{volume}}$

Electric dipole moment $p = q \cdot d$, so $[p] = C \cdot L = A \cdot T \cdot L$

$[P] = \dfrac{[p]}{[V]} = \dfrac{ATL}{L^3} = ATL^{-2} = L^{-2}T^1A^1$

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Planning QUESTION #5004

Question 2562

In landscape ecology, what does 'edge effect' refer to?

Boundary between administrative zones
Ecological changes at habitat boundaries✔️
Urban-rural fringe development
Waterfront development patterns

Correct Answer Logic:

Edge effect describes changes in species composition, microclimate, and ecological processes at the boundary between two habitats (forest-field, wetland-upland). Increased fragmentation creates more edges, affecting biodiversity and ecosystem function—critical for ecological planning.

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Reading and Writing (Module-1) QUESTION #5327

Question 2563

Regarding the bioluminescent jellyfish, when does the glow typically occur?

When the jellyfish is disturbed by a predator.✔️
During the daylight hours.
Continuously throughout the night.
Only when the water temperature rises.

Correct Answer Logic:

The text specifies the glow happens when the organism is 'disturbed.'

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Tourism & Hospitality Management QUESTION #1610

Question 2564

In the Front Office Operations course, 'overbooking' is discussed as a front office practice. Which management strategy best justifies its controlled use?

To maximize staff utilization during quiet periods
To offset anticipated no-shows and cancellations, ensuring maximum occupancy and revenue while managing the risk of walking guests✔️
To provide discounted rooms to loyal customers
To manage tour group bookings separately from individual reservations

Correct Answer Logic:

Overbooking is addressed in Module 3 (Reservations and Check-in) of the Front Office Operations course. When practiced strategically, it is used to offset predictable no-show rates and last-minute cancellations — maximizing occupancy. The course covers its relationship with yield management and the front office procedures for managing 'walked' guests when overbooking results in excess arrivals.

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General Abilities QUESTION #2853

Question 2565

A cylinder has radius 5 cm and height 14 cm. Find its volume. (Take $\pi = \dfrac{22}{7}$)

1100 cm³✔️
1150 cm³
1200 cm³
1250 cm³

Correct Answer Logic:

Volume of cylinder $= \pi r^2 h = \dfrac{22}{7} \times 5^2 \times 14 = \dfrac{22}{7} \times 25 \times 14 = 22 \times 25 \times 2 = 1100 \text{ cm}^3$.

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Pakistan Affairs QUESTION #608

Question 2566

Whose behaviour disheartened M.A. Jinnah, leading him to decide to stay away from India?

M.K Gandhi
Jawahar Lal Nehru
Sardar Patel
None of these✔️

Correct Answer Logic:

Jinnah was disillusioned by the overall political atmosphere, specifically after the 1928 Nehru Report and the Lucknow Pact's failure .

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3437

Question 2567

'Urea' is the main end product of the metabolism of:

Carbohydrates
Fats
Proteins (Amino acids)✔️
Nucleic acids

Correct Answer Logic:

The urea cycle in the liver removes toxic ammonia from the body.

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Egnlish QUESTION #670

Question 2568

"The Scarlet Letter" is set in:

17th-century Boston✔️
18th-century London
19th-century New York
16th-century Paris

Correct Answer Logic:

Nathaniel Hawthorne's novel is set in the Puritan Massachusetts Bay Colony.

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Statistics QUESTION #1967

Question 2569

The standard deviation of a sampling distribution of a statistic is specifically called:

Standard error✔️
Non-sampling error
Type-I error
Type-II error

Correct Answer Logic:

The standard deviation of a sampling distribution is called the Standard Error (SE). For example, the standard error of the mean is $SE_{\bar{X}} = \dfrac{\sigma}{\sqrt{n}}$.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3433

Question 2570

'Lipolysis' is the process of:

Building fat
Breaking down triglycerides into glycerol and fatty acids✔️
Storing sugar
Absorbing water

Correct Answer Logic:

Occurs when the body needs energy during fasting or exercise.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3258

Question 2571

The 'Specific Gravity' of urine is a measure of:

The color of urine
The concentration of solutes in the urine✔️
The volume of urine
The temperature of urine

Correct Answer Logic:

It reflects the kidney's ability to concentrate or dilute urine.

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General Knowledge QUESTION #8274

Question 2572

Which component of a computer system is often referred to as its 'brain'?

ALU (Arithmetic Logic Unit)
Memory
CPU (Central Processing Unit)✔️
Control unit

Correct Answer Logic:

The CPU processes instructions and is considered the brain of the computer.

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Planning QUESTION #4998

Question 2573

In Multi-Criteria Decision Analysis (MCDA), what is the purpose of weight assignment?

Eliminate irrelevant criteria
Reflect relative importance of criteria✔️
Reduce calculation complexity
Standardize measurement units

Correct Answer Logic:

Weight assignment in MCDA (e.g., Analytical Hierarchy Process) quantifies the relative importance of different criteria in decision-making. Weights (summing to 1.0) ensure more important factors have greater influence on final rankings or selections.

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Constitutional Law QUESTION #5813

Question 2574

Congress passes a statute providing that any person who is 'aggrieved' by a violation of the Clean Air Act may bring a civil action in federal court for damages, regardless of whether they have suffered a physical or economic injury. A citizen sues a factory for emitting excess smoke, though the citizen lives 500 miles away. Does the court have jurisdiction?

Yes, because Congress has the power to define and limit the jurisdiction of federal courts.
Yes, because the statute creates a 'legal interest' which constitutes standing.
No, because the 'case or controversy' requirement of Article III requires an 'injury in fact.'✔️
No, because the citizen lacks 'prudential standing.'

Correct Answer Logic:

Congress cannot waive the Article III requirement of 'injury in fact.' To have standing, a plaintiff must show a concrete and particularized injury. A 'statutory right' to sue is insufficient if the plaintiff has not personally suffered an actual harm.

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Islamic Studies QUESTION #212

Question 2575

What describes the role of the Caliph under the Pious Caliphate?

Political leader only
Religious leader only
Both political and religious leader✔️
None of these

Correct Answer Logic:

The Caliph (Khalifa) was the temporal and spiritual head of the Ummah.

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Pakistan Affairs QUESTION #4664

Question 2576

In the absence of Pakistan's President, who assumes the role of Acting President?

Speaker of the National Assembly
Chairman of the Senate✔️
Chief Justice of Pakistan
Prime Minister

Correct Answer Logic:

According to Pakistan's Constitution, the Chairman of the Senate assumes the office of Acting President when the President is absent or unable to perform duties.

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English QUESTION #8415

Question 2577

He went _______ the direction of the post office.

at
in✔️
to
of

Correct Answer Logic:

'In the direction of' is correct.

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General Abilities QUESTION #2908

Question 2578

Find the area of a square whose perimeter is $24$ cm.

$36\text{ cm}^2$✔️
$16\text{ cm}^2$
$48\text{ cm}^2$
$24\text{ cm}^2$

Correct Answer Logic:

Side $= 24/4 = 6$. Area $= 6^2 = 36$.

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Physics QUESTION #7303

Question 2579

The displacement of a particle is given by $s = t^3 - 6t^2 + 3t + 4$ metres. The velocity when acceleration is zero is:

$3\text{ m/s}$
$-12\text{ m/s}$
$42\text{ m/s}$
$-9\text{ m/s}$✔️

Correct Answer Logic:

$v = \dfrac{ds}{dt} = 3t^2 - 12t + 3$

$a = \dfrac{dv}{dt} = 6t - 12$

Setting $a = 0$: $t = 2\text{ s}$

$v\big|_{t=2} = 3(4) - 12(2) + 3 = 12 - 24 + 3 = \mathbf{-9\text{ m/s}}$

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Accounting & Finance QUESTION #6081

Question 2580

A firm maintains an allowance for doubtful debts at 5% of trade receivables. This year, trade receivables were $8,000, which represented a 20% decrease from the previous year. How will this change affect the current year's profit?

Decrease by $100
Decrease by $400
Increase by $100✔️
Increase by $400

Correct Answer Logic:

1. Current Receivables = $8,000. Current Allowance = $8,000 $\times$ 5% = $400.
2. Last Year Receivables = $8,000 / 0.80 = $10,000. Last Year Allowance = $10,000 $\times$ 5% = $500.
3. Change = $500 - $400 = $100 reduction in allowance.
A reduction in allowance is credited to the income statement, thus increasing profit by $100.

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