NAVY CIVILIAN ALL JOBS PAST PAPERS YEAR 2025
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چار آپشن میں سے کسی ایک پر کلک کرنے سے جواب سرخ ہو جائے گا۔
- 760 N/m²
- 50 N/m²
- 1 N/m²
- None of these
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Explanation
The SI unit of pressure is Pascal (represented as Pa)
in SI base units, one kilogram per meter per second squared (N/m2 or kg m-1s-2)
Definition of Pressure: Pressure can be defined as the force acting per unit area.
***
The SI unit of energy/work is the joule (J)
The SI unit of charge is Coulomb
The Pascal is the SI-derived unit of pressure
The ampere, symbol A, is the SI unit of electric current.
The SI unit of power is the watt, one joule per second.
The SI unit of electric resistance is the ohm (Ω).
The SI unit of temperature as per the International System of Units is Kelvin
Unit of torque: newton metre (N m)
The SI unit of velocity is a meter per second (m/s).
The SI unit of acceleration is meters/second2 (m/s2).
اگر دیئے گئے بڑے پیمانے پر گیس کا دباؤ مستقل درجہ حرارت پر دگنا ہوجاتا ہے تو ، اس کے حجم کا کیا ہوگا؟
- Become halved
- Become doubled
- Remain unchanged
- None of these
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Explanation
According to Boyle's Law, at constant temperature, the volume of a gas is inversely proportional to its pressure.
So, doubling the pressure will halve the volume.
- Sulphur
- Phosphorous
- Oxygen
- Carbon
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Explanation
Ozone (O₃) is a triatomic (three-atom) allotropic form of oxygen
Allotropy: is when an element exists in different forms in the same physical state.
Oxygen: is the element in question.
Ozone (O₃): is the specific allotropic form that contains three oxygen atoms in each molecule.
Diatomic oxygen (O₂): is the other common allotrope of oxygen, containing two oxygen atoms per molecule.
- 600 km
- 800 km
- 960 km
- None of these
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Explanation
Given:
Formula
Distance = Speed × Time
Distance = 120 × 8
= 960 km
Last updated on 06-March-2026
- Syllable
- Anagram
- Intonation
- Homonym
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Explanation
An anagram is a word formed by rearranging the letters of another word.
"Cat" is an anagram of "Act" because both have the same letters in a different order.
- Secθ
- Cosecθ
- Cotθ
- None of these
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Explanation
The reciprocal of cosθ is:Secθ
By definition:
Secθ = 1/cosθ
- 12
- 8
- 14
- 10
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Explanation
The sequence increases by 2 each time. Following this pattern, the next number after 8 is 10.
2 + 2 = 4
4 + 2 = 6
6 + 2 = 8
8 + 2 = 10
- Scaring
- Horrible
- Delectable
- Soothing
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Explanation
Terrible means خوفناک
Soothing means سکون بخش
- 0.048
- 0.768
- 0.003
- None of these
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Explanation
The average translational kinetic energy of a molecule is given by:
(3/2)kT = (3/2) × (1.38 × 10^-23 J/K) × T
Since the temperature is the same for both O2 and N2 molecules, the average translational kinetic energy will be the same:
0.048 eV = (3/2)kT
The mass of the molecule does not affect the average translational kinetic energy.
Therefore, the translational kinetic energy of N2 molecules at the same temperature is also:
0.048 eV
دنیا میں سب سے زیادہ بولی جانے والی زبان کونسی ہے؟
- Chinese
- Spanish
- English
- French
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Explanation
English is the most spoken language in the world, with over 1.4 billion speakers in 2023.
Other some widely spoken languages:
- Bengali: 272,800,000 speakers
- Portuguese: 263,600,000 speakers
- Russian: 255,000,000 speakers
- Urdu: 231,700,000 speakers
