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Math Physics Chemistry Biology QUESTION #7770
Question 1

Viruses are NOT capable of which of the following functions?

  • Forming crystals
  • Excreting wasteβœ”οΈ
  • Infecting bacteria
  • Mutating
Correct Answer Logic:

Viruses are acellular and do not carry out metabolic processes like excretion. They can form crystals outside hosts, infect bacteria, and mutate (e.g., RNA viruses).

Uploaded by: Fani Warraich
English QUESTION #8418
Question 2
His silence _______ to refusal.
  • Tantamounts
  • is tantamountβœ”οΈ
  • is tantamounting
  • tantamounted
Correct Answer Logic:
'Is tantamount to' means is equivalent to.
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Physics QUESTION #1185
Question 3
The Poynting vector represents:
  • The rate and direction of electromagnetic energy transferred in space.βœ”οΈ
  • The amount of electromagnetic energy transferred in different forms of energy.
  • Loss of electromagnetic energy in a medium.
  • The flow of thermal energy in a certain direction.
Correct Answer Logic:
The Poynting vector \(\vec{S} = \frac{1}{\mu_0}(\vec{E} \times \vec{B})\) represents the instantaneous power per unit area (energy flux density) carried by an electromagnetic wave. Its direction gives the direction of energy propagation and its magnitude gives the rate of energy transfer per unit area (W/mΒ²).
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English QUESTION #8309
Question 4
I don't know _______ to value your qualities.
  • Only how
  • so how
  • Howβœ”οΈ
  • that how
Correct Answer Logic:
'How' alone functions as an adverb meaning 'in what way'.
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Mathematics QUESTION #4124
Question 5
The polar curve $r = 2\cos(\theta)$ represents which conic section?
  • Circle with center at origin, radius $2$
  • Circle with center at $(1, 0)$, radius $1$βœ”οΈ
  • Circle with center at $(0, 1)$, radius $1$
  • Ellipse with semi-major axis $2$
Correct Answer Logic:
$r = 2\cos(\theta) \Rightarrow r^2 = 2r\cos(\theta) \Rightarrow x^2 + y^2 = 2x \Rightarrow (x-1)^2 + y^2 = 1$. Circle center $(1,0)$, radius $1$.
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Correct Answer Logic:
SI \(= 5400 - 4500 = 900\). Using \(SI = \dfrac{P \times R \times T}{100}\): \(900 = \dfrac{4500 \times R \times 4}{100} \Rightarrow 900 = 180R \Rightarrow R = 5\%\).
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Islamic Studies QUESTION #8228
Question 7
What is the duty of the Angel Mekail?
  • In-charge of the protection and also to bring rainsβœ”οΈ
  • To blow the trumpet on the Day of judgment
  • In charge of taking the life of living creatures
  • None of these
Correct Answer Logic:
Hazrat Mikail (Michael) AS is the angel in charge of rain, sustenance, and natural phenomena. He manages the distribution of provisions to all living creatures and controls weather patterns. Along with Jibreel (Gabriel), Mikail is one of the highest-ranking angels mentioned in the Quran (2:98). While Jibreel brings revelation, Mikail manages the natural order that sustains life on Earth.
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Quantitative Reasoning QUESTION #66
Question 8

For decades, economists believed that increased productivity would naturally lead to higher wages. However, recent studies indicate that while productivity has surged, wage growth has stagnated, suggesting that other structural factors β€” such as labor market policies, globalization, and technological automation β€” may be influencing income distribution.

    Sub-Questions:

    Question 1
    Which of the following best expresses the main idea of the passage?
    • A) Productivity and wage growth are always directly proportional.
    • B) Wage stagnation is primarily caused by technological advancements.
    • C) Increased productivity no longer guarantees higher wages due to other influencing factors.βœ”οΈ
    • D) Globalization is the sole reason for unequal income distribution.
    Question 2
    What does surged meaning in this paragraph?
    • Soar
    • Suddenβœ”οΈ
    • Inclined
    • Unexpected
    Correct Answer Logic:

    The passage emphasizes that higher productivity no longer ensures wage increases because of other structural factors β€” exactly what option C states.

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    General Abilities QUESTION #2881
    Question 9
    Divide $\$120$ between X and Y in the ratio $3:7$. How much does Y get?
    • $\$36$
    • $\$84$βœ”οΈ
    • $\$40$
    • $\$60$
    Correct Answer Logic:
    Sum of parts $= 10$. One part $= 120 / 10 = 12$. Y gets $7 \times 12 = 84$.
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    Education QUESTION #6705
    Question 10
    A teacher consistently observes that students from lower socioeconomic backgrounds participate less in class discussions. From a diversity and equity perspective, what is the MOST likely systemic factor?
    • Inherent ability differences
    • Cultural capital and discourse patterns vary across socioeconomic contextsβœ”οΈ
    • Lack of student motivation
    • Poor parenting practices
    Correct Answer Logic:
    Cultural capital theory explains that different socioeconomic groups develop different communication patterns and cultural knowledge. Students may possess equal ability but different discourse styles that don't align with classroom expectations. Effective teachers recognize and validate diverse communication patterns.
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    Mathematics QUESTION #6028
    Question 11

    Let $S=\left\{t\in\mathbb{R}: f(x)=|x-\pi|\cdot(e^{|x|}-1)\sin|x|\right.$ is not differentiable at $t\}$. Find $S$.

    • $\{\pi\}$
    • $\{0,\pi\}$
    • $\emptyset$ (empty set)βœ”οΈ
    • $\{0\}$
    Correct Answer Logic:

    Check $x=0$: $f(x)=|x-\pi|(e^{|x|}-1)\sin|x|$. Near $x=0$, both $(e^{|x|}-1)$ and $\sin|x|$ have factors of $|x|$, so $f(x)\approx |x-\pi|\cdot|x|^2$ near 0, which is differentiable at 0.

    Check $x=\pi$: near $\pi$, $(e^{|x|}-1)\sin|x|$ is smooth and non-zero ($e^\pi\sin\pi=0$!). Since $\sin\pi=0$, the product $(e^{|x|}-1)\sin|x|$ vanishes at $\pi$, making $f(x)=0$ near $\pi$ β€” wait, $\sin\pi=0$, so $f(\pi)=0$. Checking differentiability more carefully shows $f$ is differentiable at $\pi$ too.

    Therefore $S=\boldsymbol{\emptyset}$.

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    Math Physics Chemistry Biology QUESTION #4329
    Question 12
    Which of the following best describes 'acquired characteristics' according to Lamarckism?
    • Traits caused by mutation
    • Traits inherited from parents
    • Traits developed by use or disuseβœ”οΈ
    • Traits selected by nature
    Correct Answer Logic:
    According to Lamarck, acquired characteristics are traits developed during an organism's lifetime through use or disuse of organs, and these are then passed to offspring.
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    Islamic Studies QUESTION #8196
    Question 13
    Among the following battles, the maximum number of Huffaz-e-Quran were martyred in the:
    • Jang-e-Khandaq
    • Jang-e-Uhad
    • Jang-e-Yamamaβœ”οΈ
    • None of these
    Correct Answer Logic:
    This is a repeat of questions 70 and 165. The Battle of Yamama resulted in the martyrdom of approximately 70 Huffaz-e-Quran, making it the deadliest battle for Quran memorizers. Fought in 11 AH (632 CE) during Abu Bakr's caliphate against Musaylimah the Liar, this battle was fierce and bloody. The death of so many Huffaz created urgency to compile the Quran in written form, leading to the first official compilation under Abu Bakr's supervision with Zaid ibn Thabit as the chief compiler.
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    Correct Answer Logic:
    The effective gravity $g_{eff}$ in an upward accelerating lift is $g + a = g + g/2 = 3g/2$. Since the time period $T \propto \frac{1}{\sqrt{g}}$, the new period $T' = T \sqrt{\frac{g}{3g/2}} = T \sqrt{\frac{2}{3}}$.
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    Chemistry QUESTION #1416
    Question 15
    In chemometrics, multivariate calibration involves:
    • Using multiple independent variables to predict dependent variablesβœ”οΈ
    • Using regression only on X-data
    • Performing correlation without regression
    • None of these
    Correct Answer Logic:
    Multivariate calibration in chemometrics uses multiple independent variables (e.g., spectral data at multiple wavelengths) simultaneously to build predictive models for dependent variables (e.g., concentration). Techniques like Principal Component Regression (PCR) and Partial Least Squares (PLS) are commonly used. It goes beyond simple univariate regression.
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    Physics QUESTION #4399
    Question 16
    Earth receives large amount of energy directly from:
    • Wind
    • Water
    • Sunβœ”οΈ
    • Moon
    Correct Answer Logic:
    The Sun is the primary source of energy for Earth. Solar radiation (electromagnetic energy) travels through space and is absorbed by Earth's surface and atmosphere.
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    Law QUESTION #9675
    Question 17
    Under Article 17(2)(a), for financial or future obligations reduced to writing, the instrument must be attested by:
    • One man and one woman
    • Two men, or one man and two womenβœ”οΈ
    • Three men or two women
    • Any two adults
    Correct Answer Logic:
    Article 17(2)(a) states that for matters pertaining to financial or future obligations reduced to writing, the instrument shall be attested by two men, or one man and two women, so that one may remind the other if necessary.
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    General Knowledge QUESTION #4482
    Question 18
    Who authored the seminal book β€œWorld Order”?
    • Fareed Zakaria
    • Henry Kissingerβœ”οΈ
    • Andrew Heywood
    • None of these
    Correct Answer Logic:
    Henry Kissinger authored 'World Order'.
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    Correct Answer Logic:
    'Elated' means extremely happy, joyful, or thrilled. It is used to describe a feeling of great happiness and pride β€” in this context, the happiness of getting first position. 'Excited' is the closest in meaning among the options.
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    Correct Answer Logic:

    Total cost $= 19{,}00{,}000 + 1{,}00{,}000 = Rs.\ 20{,}00{,}000$

    Depreciable amount $= 20{,}00{,}000 - 40{,}000 = Rs.\ 19{,}60{,}000$

    Annual depreciation (SLM) $= \dfrac{19{,}60{,}000}{5} = Rs.\ 3{,}92{,}000$

    Under the Straight Line Method, depreciation is equal every year. So the 4th year's depreciation is also Rs. 3,92,000. There is no change between years in SLM.

    Uploaded by: Fani Warraich