PAF PF&DI PAST PAPER 2021 TO DATE
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چار آپشن میں سے کسی ایک پر کلک کرنے سے جواب سرخ ہو جائے گا۔
Truth
Early
Lie
Delay
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Explanation
PREVARICATE ٹال مٹول , گول مول بات کرنا
Lie, جھوٹ
Ooze
Overflow
Exit
None of these
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Explanation
Exude means باہر نکلنا
Ooze means باہر نکلنا
Abuse
Appreciate
Copy
Encourage
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Explanation
VITUPERATE بد نام کرنا , بدزبانی کرنا
Abuse, بدسلوکی
Resilient
Flexible
Brittle
Supple
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Explanation
Brittle . adjective. a brittle substance or object is hard and can easily break into pieces.
In
On
At
For
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Explanation
"My sister is weak in Math."
We use "weak in" to show lack of skill or ability in a particular subject or field .
Seat
Engine
Tyres
Door
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Explanation
Just as legs support a chair and enable it to stand, tyres support a car and enable it to move.
Refraction
Diffraction
Total internal reflection
Interference
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Explanation
The phenomenon responsible for light propagation in optical fibers is total internal reflection.
In an optical fiber, light travels through the core by repeatedly reflecting off the core–cladding boundary.
This happens when light hits the boundary at an angle greater than the critical angle, causing total internal reflection instead of refraction.
This keeps the light trapped inside the core, allowing it to travel long distances with minimal loss.
Zero
Maximum
Minimum
None of these
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Explanation
In a reversible adiabatic process, there is no heat exchange with the surroundings, meaning the system is isolated in terms of heat.
Since entropy is a measure of:
heat energy dispersal no heat is exchanged the entropy change in a reversible adiabatic process is zero.
اس سوال کا جواب نیچے ایکسپلنیشن میں موجود ہے
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Explanation
Based on the provided image, the correct answer is d.
The problem is to find the missing piece of the larger figure. By examining the pattern of interlocking floral shapes, we can see how the lines connect to form the complete design.
The missing piece must fill the space, which is a 2x2 grid. The top-left quadrant of the missing piece needs to connect with the partial floral shape above and to the left. The top-right quadrant must connect with the shape above and to the right. The bottom-left quadrant must connect with the shape below and to the left. The bottom-right quadrant must connect with the shape below and to the right.
اس سوال کا جواب نیچے ایکسپلنیشن میں موجود ہے
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Explanation
Applying the Pattern
To find the fourth figure, apply the same pattern to the third figure.
The third figure is a large square with a triangle inside.
Following the established pattern, you must remove the outer shape (the square) and keep only the innermost shape.
The innermost shape of the third figure is a hollow triangle .
This leads to a figure that matches option C .