PU PRE-MEDICAL (PU-M) PAST PAPER 15-06-2025
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چار آپشن میں سے کسی ایک پر کلک کرنے سے جواب سرخ ہو جائے گا۔
- 1.0
- 0.9
- 1.1
- 0.5
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Explanation
The specific gravity of fat is typically around 0.93 kg/litre at 25°C.
This means that fat is less dense than water, which has a specific gravity of 1.0 kg/litre at the same temperature.
- He
- S8
- P4
- H
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Explanation
A molecule is formed when two or more atoms chemically bond together.
While "H" represents the element hydrogen, it is a single atom and not a molecule.
A molecule of hydrogen is represented as H2, where two hydrogen atoms are bonded together.
- Newton’s First Law
- Newton’s Second Law
- Newton’s Third Law
- Law of Universal Gravitation
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Explanation
The formula for Newton's Second Law of Motion is:
F=ma
Where:
-
F = Force (in Newtons, N)
-
= Mass of the object (in kilograms, kg)
-
= Acceleration of the object (in meters per second squared, m/s²)
- Enemies
- People
- Strangers
- None of these
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Explanation
"Folks" is an informal word that means people, especially a group or community.
Folks means لوگ
People means لوگ
- Of
- From
- With
- None of these
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Explanation
The correct preposition used with "devoid" is "of".
"Devoid of" means completely lacking in something.
- Rational
- Real
- Irrational
- Imaginary
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Explanation
Since the square root of a negative number involves “i” (imaginary unit), the roots are imaginary.
They are not real, not rational, and not irrational in the real-number sense.
- Brown fat
- Blubber
- Hair
- Sweat glands
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Explanation
Blubber is a thick layer of fatty tissue found under the skin of whales, seals, and other marine mammals.
It acts as insulation against cold temperatures in ocean water and also serves as an energy reserve.
- a^2
- a^2/2
- 2/a^2
- abc/2
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Explanation
abc=? and ac=2
You want to find the value of in terms of a, assuming:.
abc is implied to be known, or abc=someexpression.
If we assume:
abc=a⋅b⋅c and ac=2,
Then:
abc=a⋅b⋅c=b(ac)=b⋅2=2b
So:
abc=2b⇒b=abc/2
- a ^2
- 𝑎^2 /2
- 2/ 𝑎^2
- 2a
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Explanation
We are asked to find the value of b.
Step 1: Start with the given
abc=a^2 and ac=2
Step 2: Substitute
ac=2 into the first equation
abc=a^2 ⇒b(ac)=a^2⇒b(2)=a^2
Step 3: Solve for b
2b=a^2⇒b=a^2/2
- Electron
- Neutron
- Proton
- Positron
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Explanation
Protons are present in the nucleus of every atom, including hydrogen, which has 1 proton and no neutron in its most common isotope.
Neutrons are present in most nuclei except ordinary hydrogen (¹H).
Electrons are found in the electron cloud, outside the nucleus.
Positrons are antimatter particles, not normally found in atomic nuclei.