1.Which of the following causes the drop of water to be in spherical shape?
(A)Viscosity
(B)Air resistance
(C)Surface tension
(D)Temperature
(E)Gravity of earth
2.On a smooth glass surface , the drop of water spreads while the drop of mercury remains almost spherical. This proves that ________?
(A)Adhesive forces with glass are more than cohesive forces of mercury
(B)Cohesive forces of mercury is more than adhesive forces with glass
(C)Cohesive force of water is less than cohesive forces of mercury
(D)mercury is a metal
(E)B & C
3.When two mercury drops are brought into contact they form a single bigger drop to get which of the following?
(A)Minimum volume
(B)Minimum surface area
(C)Maximum size
(D)Maximum surface area
(E)None of them,
4.If water is heated , it vapor pressure will ______?
(A)Increase
(B)decrease
(C)first increase and then decrease
(D)nothing happens to vapor pressure
(E)none of the above
5.Which among the following is Perfect or Ideal Gas?
(A)Helium
(B)Hydrogen
(C)Oxygen
(D)Nitrogen
(E)none of the above , An ideal gas is a theoretical gas composed of a set of randomly-moving point particles that interact only through elastic collisions.
6.Which among the following works while we wipe with a towel.?
(A)evaporation
(B)osmosis
(C)capillary action
(D)surface tension
(E)none of the above
7.A transition from the solid to gas phase with no intermediate liquid stage is called?
(A)Evaporation
(B)Sublimation
(C)Adsorption
(D)Solid Phase extraction
(E)None of the above
8.When a ship enters a Sea from a river , what happens?
(A)It rises
(B)It remains at the same level
(C)sinks a little
(D)sinks or rises depending upon the matter it is made up of
(E)none of the above
9.When a barometer is taken down in a coal mine , which of the following happens with the Mercury level in the tube?
(A)rises
(B)falls
(C)falls then rises
(D)rises then falls
(E)remains unaltered
10.Which among the following character of mercury makes it suitable to use in barometers instead of water?
(A)Low density and low vapor pressure
(B)High density and high vapor pressure
(C)Low density and good conductor of heat
(D)High density and low vapor pressure
(E)availability of mercury in liquid form
11.Which among the following is in action in the process of a liquid rising in the syringe when the piston is pulled up?
(A)Capillary action
(B)surface tension
(C)atmospheric pressure
(D)cohesive forces
(E)adhesive forces
12.Which among the following provides the centripetal force to an electron circulating around the nucleus?
(A)electrostatic forces of repulsion
(B)electrostatic force of attraction
(C)speed of the electron
(D)nuclear charge
(E)a & c
13.On which of the following the jet Engine works?
(A)Conservation of energy
(B)Conservation of Linear Momentum
(C)Conservation of Mass
(D)Conservation of Angular momentum
(E)None of the above
14.In which of the following situations the force applied by the weight of a person becomes zero in a lift ?
(A)Lift moves up with an acceleration of 9.8 meter per sq. second
(B)Lift moves down with an acceleration of 9.8 meter per sq. second
(C)Lift moves up with an speed of 9.8 meter per second
(D)Lift moves up with down speed of 9.8 meter per second
(E)the force caused by weight remains unchanged in all situations
15.Earth is X kms away from Sun & feels gravitational attraction Y. If earth were 3X kms away from Sun then which of the following would happen?
(A)Gravitation Attraction would be 9Y
(B)Gravitational Attraction would be Y/9
(C)Gravitational Attraction would be 3Y
(D)Gravitational Attraction would be 9/Y
(E)Gravitational Attraction would be Y/3
16.Which of the following will be a motion of a bullet which is fired horizontally from a Supersonic jet Fighter which is also moving Horizontal to surface of the Earth?
(A)Irregular
(B)Straight Line
(C)Circular
(D)Perpendicular
(E)Projectile
17.A person who is pulling a bucket filled with water falls behind with the sudden break of the rope. Which of the following laws of Newton comes into action?
(A)First Law
(B)Second law
(C)Third law
(D)First and third law
(E)none of them
18.When we stop pedaling while riding a bicycle , the bicycle does not come to rest . Which law of Newton works here? (Ignore friction)
(A)First Law
(B)Second law
(C)Third law
(D)All laws
(E)None of them
19.On which of the following Inertia of an object depends ?
(A)Bulk
(B)Size
(C)Shape
(D)Mass
(E)State
20.Which of the following are found in nucleus of Deuterium ?
(A)1 proton & 1 neutron
(B)2 protons
(C)1 proton and 1 electron
(D)1 proton only
(E)2 neutrons only
Its the first time i got all 20 correct..