10th Class Physics Half Book Test

• Important physics 10th class half book test pdf for all students of Punjab  Textbook Board.
• The output of a two-input NOR gate is '1' when: (A) B = 0, A = 1  (B) B =1, A = 0  (C) B = 0, A = 0  (D) B = 1, A = 1
• Which form of energy is sound? (A) electrical  (B) mechanical  (C) thermal  (D) chemical
• Fax machine is also called: (A) radio  (B) telefacsimile  (C) telecom  (D) telephone
• Important 10 class physics half book test for all students of Punjab  Textbook Board.
• The number of neutrons in tritium ((_1^3)H) is (A) 0  (B) 1  (C) 2  (D) 3
• In a vacuum all electromagnetic waves have the same: (A) Speed  (B) Frequency  (C) Amplitude  (D) wavelength
• If we double both the current and the voltage in a circuit while keeping its resistance constant, the power: (A) remains unchanged  (B) halves  (C) doubles  (D) quadruples
• Important 10th physics half book test for all students of Punjab  Textbook Board.
• The index of refraction depends on: (A) the focal length  (B) the speed of light  (C) the image distance  (D) the object distance
• Typical value of the voltage and current used for thermionic emission from tungsten filament is: (A) 6 V,0.3 A  (B) 12 V,0.3 A  (C) 12 V,3 A  (D) 6 V,3 A
• Important physics class 10 first half book test for all students of Punjab  Textbook Board.
• Two small charged sphere are separated by 2mm. Which of the following would produce the greatest attractive force? (A) +1q and +4q  (B) -1q and -4q  (C) +2q and +2q  (D) +2q and -2q
• Which is the most suitable means of reliable continuous communication between an orbiting satellite and Earth? (A) microwaves  (B) radio waves  (C) sound waves  (D) any light wave
• Important half book test physics class 10 for all students of Punjab  Textbook Board.
• The direction of induced e.m.f in a circuit is in accordance with conservation of (A) mass  (B) charge  (C) energy  (D) momentum
• SUBJECTIVE PART – l , Write short answers to any Five questions
• How damping progressively reduces the amplitude of oscillation? Explain.
• Define elastic restoring force.
• What is meant by mechanical waves? Give one example.
• Important half book test papers for class 10 physics for all students of Punjab  Textbook Board.
• What is meant by electric field and electric intensity?
• If a high-voltage power line fats across your car while you are in the car, why should you not come out of the car?
• Which form of energy is stored in a capacitor?
• State Ohm’s law. Write its formula.
• What is the difference between a cell and a battery?
• Write short answers to any Five questions:
• How can some whales communicate hundreds kilometers away?
• Why the voice of women is more shrill than that of men?
• What do you know about the term intensity level of the sound? Write down its unit.
• What is meant by Super Computer?
• What is difference between RAM and ROM memories?
• What is fax machine?
• Find the number of protons and neutrons in nuclide defined by (_6^13)X ?
• Write down any two characteristics of gamma (g) rays.
• Write short answers to any Five questions:
• Define concave mirror by drawing its diagram.
• How light pipe is useful in our daily life?
• What is refractive index? Write down its formula.
• Define mutual induction by drawing its diagram.
• Name any two devices in which relay is used.
• Define NOR gate. Make its truth table.
• What is analogue electronics? Give one example.
• NAND gate is the reciprocal of AND gate. Explain.
• SUBJECTIVE PART – II , Note: Attempt any two Questions.
• Prove that motion of a simple pendulum is simple harmonic motion.
• Two charges repel each other with a force of 0.1N when they are 5cm apart. Find the force between the same charges when they are 2cm apart.
• What is meant by half-life of radioactive element? Explain with the help of graph.
• A doctor counts 72 heart beats in 1 minute. Calculate the frequency and period of heart beats.
• What is simple microscope and derive the formula of magnifying power with diagram.
• A transformer is needed to convert a mains 240V supply into a 12V supply. If there are 2000 turns on the primary coil then find the number of turns on the secondary coil.