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Which of the following is an example of simple harmonic motion? If the mass of the bob of a pendulum is increased by a factor of 3, the period will: Which device can be used to produce both transverse and longitudinal waves? Waves transfer: Which method transfers energy? In vacuum, all electromagnetic waves have same: A large ripple tank with 30 Hz vibrator produces waves in 50 cm. Velocity is: Which characteristic of wave is independent of others? Relation between v, f and λ is: Time period of simple pendulum depends on: Product of frequency and time period is:

What is simple harmonic motion? Necessary conditions for SHM. What are damped oscillations? Define Wave. Diff b/w Mechanical and Electromagnetic waves. Diff b/w Longitudinal and Transverse waves. Define Crest and Trough. Relation between v, f and λ. How waves transfer energy? Define Reflection of waves. Define Refraction of waves. Define Diffraction of waves. Does increasing frequency increase wavelength? Effect of length on time period of pendulum. Is motion of bouncing ball SHM? Why time period is independent of mass?

Prove that motion of mass attached to spring is SHM. Motion of simple pendulum is SHM. Explain. Explain types of mechanical waves with examples. Explain properties of waves using Ripple Tank. Numerical: A simple pendulum completes one vibration in 2s. Calculate length (g=10).

Which is an example of longitudinal wave? How does sound travel from source to ear? Sound is a form of: Astronauts use radio links because: Loudness is most closely related to: Audible frequency range for normal person: When frequency increases, which decreases? Speed of sound in air at 21C: Unit of sound intensity: 1 Bel equals how many decibels?

Necessary condition for production of sound? Effect of medium on speed of sound. Prove mechanical nature of sound. Longitudinal nature of sound waves. Diff b/w Loudness and Intensity. Factors affecting Loudness. Define Intensity Level and its unit. Why use logarithmic scale for sound? Diff b/w Frequency and Pitch. Effect of amplitude on loudness. Why we hear echo? Audible frequency range? Noise as a nuisance. Importance of Acoustic Protection. Uses of Ultrasound in medicine.

Explain characteristics of Sound (Loudness, Pitch, Quality). Define Intensity Level. Derive L - Lo = 10 log (I/Io). Explain applications of Ultrasound. Numerical: Calculate intensity level of whispering (I=3.0x10^-6). Explain Echo method to find speed of sound.

Quantity not changed during refraction: Object at C of concave mirror, image is at: Object 14cm from convex mirror, image 5.8cm behind. Focal length? Index of refraction depends on: Image formed by concave lens is always: Human eye forms image: Image by camera is: Light incident > critical angle will: Critical angle water-air is 48.8 deg. Rays > 48.8 will: Mirror formula:

Define Reflection. Draw diagram. Laws of Reflection. Define Refraction. Laws of Refraction (Snell’s Law). Define Refractive Index. Define Total Internal Reflection. Conditions for Total Internal Reflection. Define Critical Angle. What are Optical Fibres? Define Principal Focus of convex/concave lens. Diff b/w Real and Virtual image. Define Power of Lens and unit. Define Resolving and Magnifying Power. Define Nearsightedness and Farsightedness. Why driver’s mirror is convex?

Explain Total Internal Reflection and Optical Fibres. Compound Microscope with ray diagram. Refraction through Prism. Image formation by Convex Lens (all cases). Simple Microscope (Magnifying Glass). Defects of Vision and correction.

Positive electric charge: Object gains negative charge if rubbed with: Coulomb Law valid for: Force between charges at 1cm vs 4cm: 5J work to shift 10C charge. Potential diff? Capacitance defined as: Unit of charge: Value of k in Coulomb law: Electric field lines: 1 micro Farad equals:

Experiment to show two types of charges. Method of charging by Electrostatic Induction. Gold Leaf Electroscope construction. Detect charge using Electroscope. State Coulomb’s Law. Define Electric Field and Intensity. Is Electric Intensity vector? Define Potential Difference and unit. Define Capacitance and Farad. Formula for Series Combination of Capacitors. Uses of Capacitors. Hazards of Static Electricity. Fixed vs Variable Capacitor. Application of Static Electricity.

Explain Coulomb’s Law. Capacitors in Series Combination. Capacitors in Parallel Combination. Explain Gold Leaf Electroscope. Types of Capacitors.

Current in conductors is due to: Voltage across 6 ohm resistor with 3A current: Lamps in series, brightness: Household appliances connected in: If voltage doubled, current: Power rating of 12V lamp with 2.5A: Two identical resistors in series = 8 ohm. In parallel? Ohm law formula: 1 kWh equals:

Define Electric Current. Electronic vs Conventional Current. Diff b/w EMF and Potential Difference. State Ohm’s Law and limitations. Define Resistance and Unit. Conductors vs Insulators. State Joule’s Law. Diff b/w AC and DC. Features of Parallel Combination. Equivalent resistance of Series combination. Hazards of household electricity. Safety measures for household circuit. Advantage of Parallel circuit. Define Kilowatt-Hour.

Ohm’s Law and VI characteristics. Resistors in Series Combination. Resistors in Parallel Combination. Joule’s Law of Heating. Explain DC and AC.

Like magnetic poles: Magnetic field lines inside magnet: Presence of magnetic field detected by: DC motor converts: Part of DC motor reversing current: Direction of induced EMF follows conservation of: Step-up transformer: Turn ratio 10 means: Transformer works on principle of:

Experiment for magnetic field around conductor. Right Hand Grip Rule. Determine polarity of solenoid. Fleming Left Hand Rule (Force direction). Torque on current carrying coil. Principle of DC Motor. Factors affecting induced EMF. Lenz’s Law. Structure of AC Generator. Mutual Induction definition. Transformer and its working. Why high voltage transmission? Why domestic supply is low voltage? Step-up vs Step-down transformer.

DC Motor construction and working. AC Generator construction and working. Mutual Induction detailed explanation. Transformer types and equation. Electromagnetic Induction experiment.

Process of electron emission from hot metal: Particles emitted from hot cathode: Gate with output 1 only if inputs different (XOR) - Note: Text uses NOR/NAND. Output of NOR is 1 when: AND gate formed by: X = A.B is logic for: Output of NAND is 0 when: Cathode rays are:

Effect of electric field on electrons. Effect of magnetic field on electrons. Working of Oscilloscope parts. Uses of Oscilloscope. Why filament is heated? What is Electron Gun? Analogue vs Digital quantities. Analogue vs Digital Electronics. Benefits of Digital Electronics. Three Universal Logic Gates. Truth table of AND gate. Truth table of NOR gate. Symbol of NAND gate. Define Thermionic Emission.

Cathode Ray Oscilloscope (CRO) construction. Logic Gates (AND, OR, NOT) with tables. NAND and NOR as Universal Gates. Deflection of electrons in E and B fields.

Information Technology deals with: Computer part for processing: Secondary memory example: Light signals sent through: Information stored on CD via: Get info about everything from: Email stands for:

Diff Data vs Information. Define ICT. Components of ICT. Primary vs Secondary Memory. Uses of Storage Devices. Transmission of Radio Waves. How Optical Fibre sends signals? Role of Computer in daily life. Hardware vs Software. Word Processing and Data Managing. Define Internet. Role of IT in education. Advantage of Optical Fibre. RAM vs ROM.

Transmission of Light Signals through Optical Fibre. Components of Computer Based Information System (CBIS). Storage Devices (Hard Disk, CD, Flash). Internet and its Applications.

Isotopes have different: Neutrons in U-238 (Z=92): Most penetrating radiation: Alpha emission decreases Z by: Half life is 1 day. After 2 days remaining: Beta emission affects protons: Sun energy due to: Fission releases: Carbon dating works because:

Atomic Number vs Atomic Mass. Define Radioactivity. Artificial Radioactivity. Three types of Radiations. Write Alpha decay equation. Does atomic number increase in decay? Define Half Life. Background Radiations sources. Uses of Radioisotopes in medicine. Hazards of Radiation. Nuclear Fission vs Fusion. Equation of Nitrogen decay to Oxygen. Difference Natural vs Artificial Radioactivity. What is Carbon Dating? Isotopes definition.

Nuclear Fission reaction detailed. Half Life explanation with graph. Uses of Radioisotopes (Agri, Med, Ind). Nuclear Fusion reaction. Hazards and Safety measures of Radiation.