a) Derive the following equation?
§
Vf = Vi + at
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S= Vit + ½ at2
§
F=G (m 1 * m 2)/R
b) define the following?
1- Scalars and Vectors 2- Acceleration (Uniform & Average) 3- Speed
4- Velocity - 5 Gravity 6- Systematic Error 7- Negative of a vector
8- Resultant Vector 9- Differentiate b/w g and G, uniform velocity and variable velocity .
c) Calculate the approximate value of mass of Earth by using Law of Gravitation?
d) Define Hooke's Law and young's modulus and drive the formula?
Q-2 a) Define the Equilibrium, Condition of Equilibrium and three states of Equilibrium?
b) Define Inclined plan and its mechanical advantage ( drive formula) ?
c) determined the Mechanical Advantage of Wheel and Axle?
Q:3 a) state the law of Conservation Of Energy?
b) Describe working and construction of refrigerator?
c) Difference b/w Kinetic and Potential Energy also drive Equation
Q:4 a) Define the following
1- Centripetal Force 2- Centrifugal Force 3- Brownian Motion
b) Explain Variation of “g” with altitude?
c) Why does a piece of stone sink in water but a ship with a huge wait float?
Q:5 a) Define the following:
1- Conduction 2- convection 3- Radiation
4- Volumetric Thermal expansion 5- Regelation
b) Define Specific Heat? Describe the experiment for measurement of specific heat of solids?
c) Write Factors on which rate of evaporation depends?
Q:6 Give S.I. Unit of following:
1- Momentum Gravitational Constant
2- Temperature Pressure
3- Specific Heat Absolute Temperature
4- Stress Amount of substance
5- Energy Torque
6- Strain Force
7- Work Pressure
a) Bullet is fired from a gun.
b) A person sitting on a chair.
c) Motion of moon around the earth
Section
B
·
Drive the equation 1/f = 1/p+1/q using ray diagram of a concave
mirror
·
Draw a ray diagram of a Compound microscope and
write it’s working
· Define the following terms
o Capacity of a capacitor
o Linear Magnificent
o Magnetic Field
o Critical Angle
o Angle of minimum deviation
o Unit of Charge
o Ampere
o Dispersion of light
· Draw a diagram showing three resistance R1, R2 and R3 Connected in series and parallel , also write characteristics
· Differentiate between following
o Ammeter and Voltmeter
o Short Sightedness and Long Sightedness
o Conductors and Insulators
· An Object is place in front of a concave mirror at a distance of 30cm. If radius of curvature of the mirror is 20cm find position and nature of the image.
· State Snell’s Law, Ohm’s law, Maxwell’s Right Hand Rule
· Prove that 1/R + 1/R1 +1/R2+1/R3 - - - - - - , if the resistances are coonnected in parallel.
· An electric lamp is marked 12v and 24w .How many joules does it consume in one hour and what is the current passing the lamp.
· How can a Galvanometer be converted into a Voltmeter?
· What are the main defects of human Eye? How they removed?
· Define the following
o Radio activity
o Radio Isotopes
o Longitudinal waves
o Resonance
o Wave length
o Nuclear Reactor
o E.m.f
o One Volt
· Differentiate the following
o Fission and Fussion Reactions
o P-Type Substance and N-Type Substances
o Musical Sound and Noise
·
Explain the ‘Chain’ reaction in 92U235
· Describe four characteristics of β particles and Alpha rays
· Find the length of a sound’s pendulum (y=9.8m/sec2)
· Define simple Harmonic Motion and explain it with example
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