IBA STS MDCAT PAST PAPER 08-12-2024
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چار آپشن میں سے کسی ایک پر کلک کرنے سے جواب سرخ ہو جائے گا۔
رفتار کے وقت کے گراف کے تحت علاقہ ______ دیتا ہے؟
- Displacement
- Speed
- Acceleration
- None of these
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Explanation
- A velocity–time graph shows how velocity changes with time.
- The slope gives acceleration.
- The area under the graph represents motion covered.
- It connects velocity with displacement.
Last verified on 22-05-2026
برقی چارج کس کی اکائی میں ماپا جاتا ہے؟
- Ohm
- Coloumb
- Ampere
- None of these
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Explanation
The SI unit of electric charge is the coulomb, represented by the symbol C.
One coulomb is the amount of charge that passes through a conductor carrying one ampere of current for one second.
It's also equal to the charge of about 6.24 quintillion electrons or protons.
کون سا ری ایجنٹ الکحل اور فینول میں فرق کر سکتا ہے؟
- Neutral FeCl₃
- NaOH
- Br₂ water
- None of these
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Explanation
Phenols react with neutral FeCl₃ to form a colored complex (usually purple, green, or blue), while alcohols do not react.This reaction is a qualitative test to distinguish phenols from alcohols.
الکینس کے لئے عام فارمولا کیا ہے؟
- CnH2n+2
- CnH2n
- CnH2n-2
- None of these
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Explanation
Key Points:
- CnH2n is the general formula for alkenes.
- CnH2n+1 is the general formula for alcohols.
- CnH2n+2 is the general formula for alkanes.
اے ٹی پی کی بہترین تعریف _____ کے طور پر کی جاتی ہے؟
- The molecule that releases energy when the phosphate molecule is removed
- The molecule that has no role in muscle contraction
- The molecule that releases energy when phosphate molecule is added
- None of these
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Explanation
ATP (Adenosine Triphosphate) stores energy in its high-energy phosphate bonds.Energy is released when the terminal phosphate bond is broken, forming ADP and phosphate.
انڈکٹنس کی پیمائش کی اکائی کیا ہے؟
- Henry
- Watt
- Light
- Tesla
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Explanation
The unit of measurement for inductance is the henry (H).
It is the International System of Units (SI) unit.
The henry is named after Joseph Henry, the physicist who independently discovered inductance.
پروجیکٹائل موشن میں زیادہ سے زیادہ اونچائی کس زاویہ پر حاصل کی جاتی ہے؟
- 45 degrees
- 60 degrees
- 90 degrees
- None of these
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Explanation
Maximum height depends on the vertical component of velocity (u·sinθ).
- The greater the vertical component, the higher the projectile goes.
- sin(90°) = 1, which is the maximum value possible.
So:
- Angle = 90° gives maximum height.
- But for maximum range, the angle is 45°.
ایک مقناطیسی میدان چارج شدہ ذرہ ______ پر طاقت کا استعمال کرتا ہے؟
- If the particle is at rest
- If the particle moving across the field lines
- If the particle moving along the field lines
- None of these
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Explanation
A magnetic field exerts a force on a charged particle when it is moving across the field lines.The force is zero if the particle is at rest or moving along the field lines.
ایک متبادل کرنٹ ویوفارم کو ڈائریکٹ کرنٹ ویوفارم میں تبدیل کرنے کے عمل کو _____ کہا جاتا ہے؟
- Thermostat
- Rectification
- Resonance
- Amplification
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Explanation
Rectification: A rectifier is a device that converts alternating current (AC) into a direct current (DC). This process is called rectification.
- A p-n junction can be used as a rectifier because it permits current in one direction only.
Amplification: The process of increasing the amplitude of the sound wave is called amplification.
- In this process, we generally increase the volume of the sound.
سرکلر حرکت میں، کونیی رفتار اور کونیی سرعت ایک دوسرے کی سمت کیا ہے؟
- Opposite
- Perpendicular
- Parallel
- None of these
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Explanation
If the angular velocity and angular acceleration have opposite directions, the object slows down.If they have the same direction, the object speeds up.
