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 📘 Physics Chapter 20 – MCQs Q1: Unit of magnetic flux is? A) Tesla B) Weber ✅ C) Volt D) Ampere Q2: Transformer works on? A) Ohm’s law B) Faraday’s law ✅ C) Newton’s law D) Coulomb’s law Q3: AC current changes? A) Magnitude B) Direction C) Both ✅ D) None Q4: Generator converts? A) Electrical → Mechanical B) Mechanical → Electrical ✅ C) Heat → Electrical D) Light → Electrical Q5: Lenz’s law is related to? A) Direction of current ✅ B) Voltage C) Resistance D) Power Q6: Step-up transformer increases? A) Current B) Voltage ✅ C) Resistance D) Power Q7: Magnetic flux depends on? A) Area B) Magnetic field C) Angle D) All ✅ Q8: DC current flows in? A) Both directions B) One direction ✅ C) Circular 🔢 Numericals (Simple Type) ❓ Q1: Magnetic flux = 0.02 Wb, time = 0.01 s Find induced EMF Ans: EMF = Φ / t = 0.02 / 0.01 = 2 V ❓ Q2: Primary turns = 100, Secondary = 200 Input voltage = 10V Find output voltage Ans: Vs/Vp = Ns/Np Vs/10 = 200/100 Vs = 20V D) None

 ❓ Q1: What is magnetic flux? Ans: Magnetic field lines passing through a surface is called magnetic flux. ❓ Q2: What is unit of magnetic flux? Ans: Weber (Wb). ❓ Q3: What is electromagnetic induction? Ans: Production of current in a conductor due to changing magnetic field. ❓ Q4: State Faraday’s law. Ans: Induced EMF is proportional to rate of change of magnetic flux. ❓ Q5: What is Lenz’s law? Ans: Direction of induced current opposes the change causing it. ❓ Q6: What is transformer? Ans: Device used to increase or decrease voltage. ❓ Q7: What are types of transformer? Ans: Step-up and Step-down transformer. ❓ Q8: What is AC current? Ans: Current that changes direction continuously. ❓ Q9: What is DC current? Ans: Current that flows in one direction. ❓ Q10: What is generator? Ans: Device that converts mechanical energy into electrical energy. ❓ Q11: What is mutual induction? Ans: Induction of current in one coil due to change in current in another coil. ❓ Q12: What is self inductio...

 Q1: Coordination kya hoti hai? Ans: Body ke different parts ka mil kar kaam karna coordination kehlata hai. ❓ Q2: Nervous system ka main function kya hai? Ans: Body ke functions ko control aur coordinate karna. ❓ Q3: Neuron kya hota hai? Ans: Nerve cell jo impulses transmit karta hai. ❓ Q4: Reflex action kya hota hai? Ans: Instant aur automatic response bina sochay samjhay. ❓ Q5: Brain ke main parts kaun se hain? Ans: Cerebrum, Cerebellum, Medulla oblongata. ❓ Q6: Hormones kya hotay hain? Ans: Chemical messengers jo endocrine glands se release hotay hain. ❓ Q7: Pituitary gland ko master gland kyu kehte hain? Ans: Kyun ke ye dusri glands ko control karti hai. ❓ Q8: Thyroxine hormone ka function kya hai? Ans: Metabolism ko regulate karta hai. ❓ Q9: Insulin ka kya kaam hai? Ans: Blood sugar level ko control karta hai. ❓ Q10: Adrenaline hormone kab release hota hai? Ans: Stress ya emergency situation me. ❓ Q11: Synapse kya hota hai? Ans: Do neurons ke darmiyan gap jahan impulse transf...

 Biology Chapter 18 Short Questions with Answers Q1: What is endocrinology? 👉 Endocrinology is the study of hormones and endocrine glands. Q2: What are hormones? 👉 Hormones are chemical messengers secreted by endocrine glands. Q3: What is the function of pituitary gland? 👉 It controls other endocrine glands and is called master gland. Q4: Name the thyroid hormone. 👉 Thyroxine. Q5: What is the function of insulin? 👉 It regulates blood glucose level. Q6: What is diabetes? 👉 A disease caused by deficiency of insulin. Q7: What is adrenaline? 👉 A hormone released in stress or emergency. Q8: What is feedback mechanism? 👉 It regulates hormone secretion. Q9: Name male sex hormone. 👉 Testosterone. Q10: Name female sex hormone. 👉 Estrogen.

 Define Magnetic Field. Answer: Magnetic field wo region hai jahan magnetic force kisi magnetic material ya moving charge par act karta hai. State the direction of magnetic field around a current-carrying conductor. Answer: Right-hand thumb rule ke mutabiq: Thumb current ki direction me rakho, fingers magnetic field ki direction dikhaengi. What is Electromagnetism? Answer: Electromagnetism wo phenomenon hai jisme current se magnetic field produce hota hai aur magnet ka effect paida hota hai. Define Solenoid. Answer: Solenoid ek coil of wire hai jisme current flow karne par magnetic field create hota hai. Applications of Electromagnet. Answer: Electric bell Crane for lifting metals MRI machines What is Fleming’s Left-Hand Rule? Answer: Ye rule motor effect me force ki direction determine karta hai: Thumb → Motion First finger → Magnetic field Second finger → Current What is Magnetic Flux? Answer: Magnetic flux = total magnetic field passing through a surface Define Faraday’s Law of ...

 What is Photosynthesis? Answer: Photosynthesis wo process hai jisme green plants sunlight, carbon dioxide aur water ki madad se glucose aur oxygen banate hain. Write the equation of Photosynthesis. Answer: What are Chloroplasts? Answer: Chloroplasts plant cells ke organelles hain jahan photosynthesis hoti hai. Explain the role of Chlorophyll. Answer: Chlorophyll green pigment hai jo sunlight ko absorb karta hai aur photosynthesis me energy provide karta hai. What is Cellular Respiration? Answer: Cellular Respiration wo process hai jisme cells glucose ko energy me convert karte hain. Difference between Aerobic and Anaerobic Respiration. Answer: Aerobic: Oxygen ki presence me hoti hai, zyada energy release hoti hai Anaerobic: Oxygen ke bina hoti hai, kam energy release hoti hai What is Transpiration? Answer: Transpiration wo process hai jisme plants ke leaves se paani water vapor ke form me evaporate hota hai. Define Stomata and its function. Answer: Stomata small pores hote hain le...

 Physics Chapter 17 – Important Short Questions 1. Define Wave Motion. 2. Types of Waves. 3. What is Wavelength? 4. Define Frequency. 5. Relation between wavelength and frequency. 6. Define Period of a wave. 7. What is Transverse wave? 8. What is Longitudinal wave? 9. Examples of wave motion. 10. Uses of waves in daily life. These short questions are very important for board exams.

 Physics Chapter 18 – Important Short Questions with Answers Define Doppler Effect. Answer: Doppler Effect wo phenomenon hai jisme sound ya light ki frequency source ya observer ke motion ki wajah se change hoti hai. Applications of Doppler Effect. Answer: Radar speed detection Weather forecasting (rain clouds) Medical imaging (blood flow measurement) What is Sound Intensity? Answer: Sound Intensity ka matlab hai energy per second per unit area jo sound wave transfer karti hai. Relation between frequency and wavelength. Answer: Copy code v = f × λ jahan v = speed of sound, f = frequency, λ = wavelength What is Resonance? Answer: Resonance wo phenomenon hai jahan system ki natural frequency ke barabar driving frequency apply karne par amplitude maximum ho jata hai. Examples of resonance. Answer: Swing par push karna Guitar strings ka sound Glass breaking with high pitch sound Define Ultrasound. Answer: Ultrasound sound waves hai jinki frequency > 20,000 Hz hoti hai, jo human ear ...

 Physics Chapter 18 – Important Short Questions 1. Define Doppler Effect. 2. Applications of Doppler Effect. 3. What is Sound Intensity? 4. Relation between frequency and wavelength. 5. What is Resonance? 6. Examples of resonance. 7. Define Ultrasound. 8. Uses of ultrasound. 9. Explain Echo. 10. Human ear range of hearing

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 Welcome to FSc Notes Hub FSc Notes Hub ek educational blog hai jo specially FSc Part 1 aur Part 2 students ke liye banaya gaya hai. Is blog ka maqsad students ko Physics, Chemistry aur Biology ke important short questions, MCQs aur board pattern notes provide karna hai taake woh apni exam preparation behtar tareeke se kar saken. Hum Lahore Board ke pattern ko follow karte hue important aur repeated questions share karte hain. Yahan par di gayi study material helping books, model papers aur past paper trends ko madde nazar rakh kar tayar ki jati hai. Hamari koshish hai ke students ko: Important short questions Board repeated MCQs Easy aur simple explanations Smart exam preparation tips ek hi jagah par mil jayein. FSc Notes Hub un students ke liye hai jo kam time me smart study karna chahte hain aur board exams me achay marks hasil karna chahte hain. Hum regularly naya content update karte rehte hain taake students ko latest aur useful material milta rahe. Agar aap FSc student hain ...

 Biology Chapter 3 – Important MCQs 1. The functional unit of kidney is: (a) Neuron (b) Nephron (c) Alveoli (d) Villus 2. Blood is a type of: (a) Tissue (b) Organ (c) Cell (d) System 3. The largest organ of human body is: (a) Heart (b) Liver (c) Skin (d) Brain 4. Respiration occurs in: (a) Lungs (b) Heart (c) Brain (d) Liver 5. Plants prepare food by: (a) Respiration (b) Photosynthesis (c) Digestion (d) Absorption These MCQs are very important for exams.

 Chemistry Chapter 5 – Important Short Questions 1. Define Solution. 2. Types of Solutions. 3. What is Solute and Solvent? 4. Define Concentration. 5. Units of Concentration. 6. What is Saturated Solution? 7. Define Unsaturated Solution. 8. Factors affecting solubility. 9. Importance of solutions in daily life. 10. Examples of solutions. These questions are very important for exams.

 Chemistry Chapter 5 – Important Short Questions 1. Define Solution. 2. Types of Solutions. 3. What is Solute and Solvent? 4. Define Concentration. 5. Units of Concentration. 6. What is Saturated Solution? 7. Define Unsaturated Solution. 8. Factors affecting solubility. 9. Importance of solutions in daily life. 10. Examples of solutions. These questions are very important for exams.

 Physics Chapter 17 – Important Short Questions 1. Define Wave Motion. 2. Types of Waves. 3. What is Wavelength? 4. Define Frequency. 5. Relation between wavelength and frequency. 6. Define Period of a wave. 7. What is Transverse wave? 8. What is Longitudinal wave? 9. Examples of wave motion. 10. Uses of waves in daily life. These short questions are very important for board exams.

 Biology Chapter 2 – Important MCQs 1. Which organelle is called the brain of the cell? (a) Nucleus (b) Ribosome (c) Mitochondria (d) Chloroplast   2. Photosynthesis produces: (a) Oxygen (b) Carbon Dioxide (c) Water (d) Glucose   3. DNA replication occurs in: (a) Nucleus (b) Cytoplasm (c) Ribosome (d) Mitochondria   4. Cell wall is found in: (a) Plant cell (b) Animal cell (c) Both (d) None   5. Enzymes are: (a) Proteins (b) Carbohydrates (c) Lipids (d) Nucleic acids These MCQs are very important for exams.

 Chemistry Chapter 4 – Important Short Questions 1. Define Acid and Base.   2. pH scale and its importance.   3. Strong and Weak Acids examples.   4. Neutralization reaction definition.   5. Salt formation process.   6. Indicators and their uses.   7. Difference between Acid, Base, and Salt.   8. Common acids and bases in daily life.   9. Uses of acids in industry.   10. Chemical formula of common salts. These questions are very important for exams.

 Physics Chapter 16 – Important Short Questions 1. Define Work and Energy.   2. Difference between Kinetic and Potential Energy.   3. Law of Conservation of Energy.   4. Power formula and unit.   5. Mechanical Advantage and Efficiency.   6. Simple Machines types.   7. Examples of Work done in daily life.   8. Formula of Work.   9. Energy transformations examples.   10. Renewable and Non-renewable energy sources. These questions are very important for board exams.

 Biology Chapter 1 – Important MCQs 1. The structural unit of life is: (a) Cell (b) Tissue (c) Organ (d) System   2. Photosynthesis occurs in: (a) Mitochondria (b) Chloroplast (c) Nucleus (d) Ribosome   3. DNA stands for: (a) Deoxyribonucleic Acid (b) Ribonucleic Acid (c) Amino Acid (d) Fatty Acid   4. The powerhouse of the cell is: (a) Nucleus (b) Ribosome (c) Mitochondria (d) Cytoplasm   5. Human heart has: (a) 2 chambers (b) 3 chambers (c) 4 chambers (d) 5 chambers These MCQs are very important for exams.

 Chemistry Chapter 3 – Important Short Questions 1. Define Compound.   2. Difference between Mixture and Compound.   3. What is Chemical Reaction?   4. Types of Chemical Reactions.   5. Law of Conservation of Mass.   6. Define Exothermic and Endothermic Reactions.   7. Examples of Physical and Chemical changes.   8. Balancing chemical equations.   9. Importance of Reaction Rate.   10. Catalysts and their uses. These short questions are very important for exams.

 Physics Chapter 15 – Important Short Questions 1. Define Heat Transfer.   2. What is Conduction?   3. What is Convection?   4. Define Radiation.   5. Formula of Specific Heat.   6. Difference between Heat and Temperature.   7. Define Latent Heat.   8. Examples of Thermal Conductivity.   9. Methods to reduce heat loss.   10. Practical uses of heat energy. These questions are very important for board exams.

 Biology – Important MCQs for FSc Part 2 (Lahore Board) 1. The basic unit of life is:    (a) Tissue (b) Cell (c) Organ (d) System 2. Photosynthesis occurs in:    (a) Mitochondria (b) Chloroplast (c) Nucleus (d) Ribosome 3. DNA stands for:    (a) Deoxyribonucleic Acid    (b) Ribonucleic Acid    (c) Amino Acid    (d) Fatty Acid 4. The powerhouse of the cell is:    (a) Nucleus (b) Ribosome (c) Mitochondria (d) Cytoplasm 5. Human heart has:    (a) 2 chambers (b) 3 chambers (c) 4 chambers (d) 5 chambers These MCQs are very important for board exam preparation.

 Chemistry Chapter 2 – Important Short Questions for FSc Part 2 (Lahore Board) 1. Define Atom and Molecule. 2. What is Empirical Formula? 3. Define Molecular Formula. 4. What is Atomic Mass? 5. Define Mole Concept. 6. What is Avogadro Number? 7. Define Gram Atomic Mass. 8. What is Chemical Formula? 9. Difference between Atom and Ion. 10. Define Relative Atomic Mass. These short questions are very important for board exams. Prepare these for better marks in Chemistry.

 Physics Chapter 14 – Important Short Questions for FSc Part 2 (Lahore Board) 1. Define Latent Heat. 2. Write the formula for Heat Transfer. 3. What is Specific Heat Capacity? 4. Define Thermal Conductivity. 5. What is Convection? 6. What is Radiation? 7. Define Temperature. 8. Difference between Heat and Temperature. 9. Define Thermometer. 10. Uses of Heat Energy.eat Energy.