ENTRANCE TEST – 2008 Multiple Questions and Answers.




46.A pipe varies uniformly in diameter from 2 m to 4 m. An incompressible fluid enters the pipe with velocity 16m/sec. What is velocity of fluid when it leaves the pipe?
A. 64 m/sec.
B. 32 m/sec.
C. 8m/sec.
D. 4 m/sec.

47. Transverse waves cannot be setup in _________
A. Metals.
B. Solids.
C. Fluids.
D. Soil

48.The ratio of the __________ is called magnification.
A. Image size to object size.
B. Object size to image size.
C. Eyepiece size to object size.
D. None of these

49.Which of the following has the highest resistivity?
A. Germanium
B. Silver
C. Copper
D. Platinum

50.An n-type semi-conductor is made by doping silicon crystal with __________
A. Indium
B. Aluminum
C. Arsenic
D. Both B and C

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