SALU ENTRY TEST PAST PAPERS AND SYLLABUS
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چار آپشن میں سے کسی ایک پر کلک کرنے سے جواب سرخ ہو جائے گا۔
مائکولوجی کا مطالعہ کیا ہے؟
- Insects
- Fungus (Fungi)
- Sound
- Minerals
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Explanation
Mycology studies fungus.
It is the branch of biology focused on the study of fungi.
Including their genetic and biochemical properties.
ایک کلو واٹ گھنٹہ _____ کی اکائی ہے؟
- Power
- Energy
- Energy/time
- None of these
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Explanation
A kilowatt hour (kWh) measures the amount of energy consumed when 1 kilowatt of power is used for 1 hour.
It is a unit of electrical energy.
Kilowatt hour is the unit of ENERGY.
Watt or Kilowatt is the unit of POWER.
ایک برقی فیلڈ سب سے زیادہ براہ راست _____ سے متعلق ہے؟
- The force acting on a test charge
- The momentum of a test charge
- The kinetic energy of a test charge
- None of these
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Explanation
The electric field (E) is defined as the force (F) experienced per unit positive test charge (q), i.e. E = F/q.
Hence, it is directly related to the force acting on a test charge.
آواز میں روشنی سے مختلف ہے یہ آواز _____؟
- Is a longitudinal wave rather than a transverse wave
- Is not subject to diffraction
- Does not require energy for his origin
- None of these
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Explanation
Sound travels as a longitudinal wave, where particles vibrate parallel to the direction of wave motion.
In contrast, light is a transverse wave, with vibrations perpendicular to the direction of propagation.
- 6800 N
- 12800 N
- 1090 N
- None of these
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Explanation
Given:Mass (m) = 1000 kg
Acceleration (a) = 3 m/s² (upward)
Gravitational acceleration (g) = 9.8 m/s²
Tension (T) = m(g + a)
= 1000 × (9.8 + 3)
= 1000 × 12.8
= 12,800 N
مندرجہ ذیل میں سے کون تیز رفتار حرکت کی مثال نہیں ہے؟
- A swinging pendulum
- Horizontal component of projectile motion
- Vertical component of projectile motion
- Circular motion at constant speed
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Explanation
The horizontal component of projectile motion has constant velocity (no acceleration).
The vertical component and circular motion both involve acceleration, as does a swinging pendulum.
مندرجہ ذیل میں سے کون سا عناصر لینتھانائڈ ہے؟
- Polonium (Po)
- Actinium (Ac)
- Francium (Fr)
- Cerium (Ce)
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Explanation
Lanthanides are a series of chemical elements with atomic numbers from 58 (Cerium) to 71 (Lutetium).
Cerium (Ce) has an atomic number of 58, making it the first element in the lanthanide series.
مندرجہ ذیل میں سے کون سا حل زیادہ تیزابیت کا حامل ہوگا؟
- pH = 1
- pH = 2
- pH = 6
- pH = 1.5
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Explanation
The pH scale measures the acidity or alkalinity of a solution on a scale from 0 to 14.
Solutions with a pH less than 7 are considered acidic.
The closer the pH value is to 0, the more acidic the solution is.
Therefore, a solution with a pH of 1 is more acidic.
قدرتی گیس _____ پر مشتمل ہے؟
- Methane
- Ethane
- Propane
- All of them
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Explanation
Natural gas is a mixture of several gaseous hydrocarbons.
The primary component is methane (CH4), which can make up 70% to 90% of the mixture.
Smaller amounts of other hydrocarbons, such as ethane (C2H6), propane (C3H8), and butane, are also present.
These are often referred to as Natural Gas Liquids (NGLs).
They are separated from the methane during processing.
وہ مرکبات جن میں ان کے انو میں کم از کم ایک بینزین رنگ ہوتا ہے اسے _____ کہا جاتا ہے؟
- Alicyclic compounds
- Aliphatic compounds
- Aromatic compounds
- None of these
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Explanation
The compounds that contain at least one benzene ring are called aromatic compounds.
This class of organic compounds, also known as arenes.
It has a unique stability due to a ring of delocalized pi electrons.
