(b). Benzoic acid, C6H5COOH, is a week mono baricacid….(Unit 8)13. (a). NHS can be produced by heating together…..(Unit 1)(b). What are enzymes? Explain how do they act as catalysts?Also give characteristics of enzyme catalyst14. (a). What is a galvanic cell? Give its composition &working of galvanic cell.(b). Mg reacts with HCI to give hydrogen gas……..(Unit 1)15. (a). Write a note on construction and working of bombcalorimeter. Describe bomb-calorimeter method fordetermination of enthalpy of reaction.(b). What is an ideal gas? Real gases deviate more from idealbehavior at low temperature and under high pressure,explain.16. (a). Describe the electrolysis of molten sodium chloride &concentrated solution of sodium chloride(b). Differentiate b/w isomorphism & polymorphism.17. (a). Define solubility. Explain solubility curve.(b). What are cathode rays? How these rays are produced?Write their properties.18. (a). How are positive rays produced in discharge tube?Give properties of these raysa 2014, 2015(b). What is mass spectrometer? How is it used to determinethe relative atomic masses of isotopes?19. (a). Write characteristics of the catalyst. Also discuss typesof catalyst.(b). Write a note on catalysis. Distinguish b/w homogeneousand heterogeneous catalysis with suitable examples.20. (a). Define yield. How do we calculate the percentageVield of a chemical reaction? Diferentiate b/w actual and
theoretical yield. Why actual yield is less than theoreticalyield?(b). What is electrochemical series? Give its any threeapplications.21. (a). What are liquid crystals? Give their three uses.(b). What are azeotropic mixtures? What type of deviation isshown by them? Explain with the help of graph.F.Sc PhysicsGuess PaperInter Part 1(All Boards)
1st year Physics Important Questions andGuess paper 2018 - 11th classCategory 1 – Most Important Questions(ChapterWise)1. (a). Define gravitational field and conservative field. Showthat work done in the earth’s gravitational field isindependent of the path followed. Hence show that workdone in closed path is zero.(b). Define isolated system and linear momentum. State andexplain law of conservation of linear momentum.2. (a). What is the diffraction grating? Also define diffractionof light. How it is used to determine the wavelength of thelight used? Also describe the diffraction of X-Rays by crystaland obtain Bragg’s equation,(b). Define molar specific heat and prove the relation Cp –Cv=R3. (a). Explain the addition of vectors by rectangularcomponents method.(b). What is Newton’s formula for the speed of sound in air?Write Laplace’s correction. OR What are the defects inNewton’s formula for speed of sound? How this formula wasconnected by Laplace?4. (a). Define and explain simple pendulum? Show that itsmotion is SH.M. Derive an expression for its time period.(b). What is S.H.M? Derive an expression for the K.E. and P.E.of mass-spring system executing S.H.M. Show that the totalenergy of the vibrating mass spring system is constant.
5. (a). Explain the working of Michelsion Interferometer. HowMichelson measured the speed of light. Discuss its principle,construction, working & application.(b). Discuss the elastic collision of two smooth balls in onedimension and find their velocities after the collision. Alsoshow that for elastic collision in the dimension, the velocity ofapproach is equal to the velocity of separation.6. (a). Write down the Young’s double slit experimentcompletely.(b). Determine rectangular components of a vector A, makingan angle q. with the horizontal. Also define rectangularcomponents of a vactor.7. (a). What are geo stationary satellites? Find their orbitalradius around the earth.(b). Define centripetal force? Dérive its relation for it in termsof angular velocity.8. (a). Define absolute potential energy (PE). Derive anequation for absolute P.E. of a body at the earth’s surfaceAlso show that absolute potential energy is U=-GMm/r(b). Define Simple Harmonic Motion. Derive the relation forinstantaneous velocity for the projection of particle ‘P’moving in a circle.9. (a). Explain the construction and working of a compoundmicroscope with ray-diagram. Derive a relation for its angularmagnification.(b). State and prove Bernoulli’s equation for the laminar flowof fluids.
Category 2 – Important Questions1. (a). Define escape velocity and derive its formula. Alsocalculate its value on surface of earth.(b). Define vector product of two vectors with two examplesand write down its four characteristics2. (a).Define scaler product of two vectors and give its fourcharacteristics.(b). Define two specific heats of a gas and derive relationbetween them.3. (a). Explain rotational K.E. Find the rotational K.E. of disc.(b). Define average translational kinetic energy of moleculesin a gas. Show that pressure exerted by the gas is directlyproportional to the average translation kinetic energy of gasmolecules4. (a). What is Doppler effect? Find the apparent change infrequency when source is at rest and observer is moving?(b). Find angle of projection of a projectile…….(Unit 3)5. (a). A 1000 kg car travelling…..(unit 5)(b). A body of moment of inertia about……(unit 5)6. (a). What gauge pressure is required…(unit 6)(b). A simple pendulum is 50cm…..(unit 7)7. (a). A book of mass 4.0kg is….(unit 7)(b). Discuss effects of temperature on speed of sound. Alsoprove U1=U0+ 0.6118. (a). Explain interference. Discuss its kinds & conditions.(b). In Young’s double slit experiment the second….(unit 9)9. (a). Light is incident normally on a grating….(Unit 9)(b). Sodium light of wave length of 589 nm…..(unit 9)
10. (a). An astronomical telescope having magnifying powerof 5……(unit 10)(b). Define and explain Torque. Discuss torque in case of rigidbody.11. (a). Explain the working of a petrol engine and composeits efficiency with diesel engine(b). State the equation of continuity and derive its relation.12. (a). Prove that absolute temperature of an ideal gas isdirectly proportional to the average translational kineticenergy of gas molecules(b). What is the projectile motion? Derive the relation for timeof flight(i)maximum height for projectile(i) acceleration(iv)instantaneous velocity13. (a).Define and explain simple microscope. Calculatemagnification of simple microscope.(b).State and explain Torricelli’s theorem.14. (a).Describe work energy principle.(b).Explain isothermal process and adiabatic process.
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