EVERYDAY SCIENCE
Download PDF Click here
فری تیاری کیلے Whatsappجوائن کریںClick
here
چار آپشن میں سے کسی ایک پر کلک کرنے سے جواب سرخ ہو جائے گا۔
بھاری پیداواری مشینری چلانے میں استعمال ہونے والی توانائی سب سے زیادہ کس شعبے میں شمار ہوتی ہے؟
- Residential lighting sector
- Household sector
- Industrial sector
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- The Industrial Engineering sector uses heavy machines, factories, and large production equipment.
- So it consumes the highest amount of industrial energy.
- Industries require electricity, gas, coal, and fuel to run manufacturing plants and machinery.
- Heavy industries like steel, cement, textile, and automobile production are major energy consumers.
Last verified on 25-05-2026
توانائی کے چھوٹے پیکٹس کو کیا کہا جاتا ہے؟
- Atoms
- Quanta
- Waves
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- Energy is not continuous; it exists in small packets.
- These packets are called quanta (singular: quantum).
- Light energy is carried in quanta called photons.
- This idea is part of quantum theory.
- It explains atomic and subatomic behavior of energy.
Last verified on 24-05-2026
تھریش ہولڈ فریکوئنسی کی تعریف کیا ہے؟
- Average frequency
- Random frequency
- Minimum frequency to emit electrons
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- Threshold frequency is a concept of the photoelectric effect.
- It is the minimum frequency of light needed to remove electrons from a metal surface.
- Below this frequency, no electrons are emitted.
- Different metals have different threshold frequencies.
- This concept was explained by Albert Einstein in 1905.
Last verified on 24-05-2026
مد و جزر کی قوت بنیادی طور پر کس وجہ سے پیدا ہوتی ہے؟
- Wind
- Moon gravity
- Sun heat
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- Tidal forces are mainly caused by the Moon’s gravitational pull.
- The Moon attracts Earth’s oceans, creating high and low tides.
- The Sun also affects tides but less than the Moon.
- Tides occur regularly due to Earth-Moon interaction.
- Coastal areas experience noticeable tidal changes daily.
Last verified on 24-05-2026
زمین کے اندر موجود پانی فراہم کرنے کا ذریعہ کون سا ہے؟
- Rivers
- Dams
- Tube wells
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- Tube wells extract water from underground layers called aquifers.
- They are widely used for irrigation and drinking water.
- Water is pumped to the surface using electric or diesel pumps.
- Tube wells are important in agricultural areas.
- They help where surface water is limited.
Last verified on 24-05-2026
کون سا شعبہ توانائی کو زیادہ تر مشینری اور پیداوار کے لیے استعمال کرتا ہے؟
- Industrial
- Commercial
- Transport
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- The industrial sector uses energy for manufacturing and machinery.
- Factories require electricity and fuel for production processes.
- Heavy industries consume large amounts of energy daily.
- Industries are important for economic growth and employment.
- Common industrial energy sources include electricity, gas, and coal.
Last verified on 25-05-2026
قدرتی گیس کا اہم جزو کونسا ہے؟
- Methane
- Ethane
- Propane
- Chlorine
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- Natural gas contains about 80% to 95% methane.
- It is a hydrocarbon fuel.
- It is the chief (major) component of natural gas.
- It is also a greenhouse gas.
- Chemical formula: CH₄
- It is a clean-burning fuel used in daily life.
Last verified on 07-05-2026
کون سا توانائی کا ذریعہ ونڈ ٹربائنز پر منحصر ہوتا ہے؟
- Biomass
- Solar
- Wind
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- Wind energy uses moving air to produce electricity.
- Wind turbines convert kinetic energy of wind into electrical energy.
- It is a renewable and environmentally friendly source.
- Wind farms are commonly built in open and coastal areas.
- It reduces dependence on fossil fuels.
Last verified on 24-05-2026
خلیے کا کون سا حصہ پروٹین بنانے کا ذمہ دار ہے؟
- Nucleus
- Ribosomes
- Mitochondria
- Golgi apparatus
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- Ribosomes are the sites of protein synthesis in the cell.
- They read genetic instructions (mRNA) and assemble amino acids into proteins.
- They can be found free in the cytoplasm or attached to rough ER.
- They are made of RNA and proteins.
- They are present in both prokaryotic and eukaryotic cells.
Last verified on 06-05-2026
صحت مند جلد کے لیے کون سا وٹامن اہم ہے؟
- Vitamin C
- Vitamin A
- Vitamin B
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- Vitamin A is essential for healthy skin and tissues.
- It helps in growth and repair of skin cells.
- It maintains epithelial tissues in good condition.
- Deficiency can cause dry and rough skin problems.
- It is also important for vision and immunity.
Last verified on 24-05-2026
