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Ravi?s salary was reduced by 25%.Percentage increase to be effected to bring the salary to the original level is (a) 20% (b) 25% (c) 33 1/3% (d) 30%
3 11084A and B can finish a piece of work in 20 days .B and C in 30 days and C and A in 40 days. In how many days will A alone finish the job?
5 42607How long will a train 100m long traveling at 72kmph take to overtake another train 200m long traveling at 54kmph?
2 12705Which of the following parameters is the same for molecules of all gases at a given temperature? (a) Mass (b) Momentum (c) Speed (d) Kinetic energy.
1 7343A solid is completely immersed in liquid. The force exerted by the liquid on the solid will (a) Increase if it is pushed deeper inside the liquid (b) Change if its orientation is changed (c) Decrease if it is taken partially out of the liquid (d) None of the above.
3 7580Select the correct statements (a) A simple harmonic motion is necessarily periodic (b) An oscillatory motion is necessarily periodic (c) A periodic motion is necessarily oscillatory (d) All of the above.
2 6140An electron is injected into a region of uniform magnetic flux density with the components of velocity parallel to and normal to the flux. What is the path of the electron?
2505A constant voltage is applied between the 2 ends of a uniform metallic wire. Some heat is developed in it. The heat developed is doubled if (a) both the length and radius of the wire are halved. (b) both the length and radius of the wire are doubled (c) the radius of the wire is doubled (d) the length of the wire is doubled.
1 7351If Young?s double slit experiment is performed in water (a) the fringe width will decrease (b) the fringe width will increase (c) the fringe width remains unchanged (d) there will be no fringe.
3 11250The shape of a spot of light produced when bright sunshine passes perpendicular through a hole of very small size is (a) Square, because the hole is a square (b) Round, because it is an image of the sun (c) Round with a small penumbra around it (d) Square with a small penumbra.
1 4482Some forms are books. All books are made of paper (a) Some forms are made of paper (b) Some forms are not made of paper (c) No forms are made of paper (d) None of the above.
1 12928All toffees are chocolates. Some toffees are not good for health. (a) Some chocolates are not good for health (b) Some toffees are good for health (c) No toffees are good for health (d) Both (a) and (b).
1 5874
What are the markets for specific types of fish products?
Explain what are the main limiting factors for the growth of a population?
Is dwarf pampas grass invasive?
Explain how are ecological interactions classified?
What is the science of bioinformatics?
What is the rule for the pairing of nitrogen-containing bases in the dna molecule and in the rna? Is this last question appropriate?
What are interspecific ecological interactions?
Define polar covalent bond?
What are the 5 main differences between respiration and photosynthesis?
What are the morphological & anatomical differences between poisonous & non poisonous snakes?
What is an analogy for a smooth endoplasmic reticulum?
What is meant by cold sterilization?
What are plate hyperthermophiles ?
How do environmental factors affect growth ?
What is the relation between environmental resistance and the population growth according to the biotic potential curve?
