All India Engineering / Architecture Entrance Examination (AIEEE)
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AIEEE 2008 Physics
Q. 14. A working transistor with its three legs marked P, Q and R is tested using a multimeter. No conduction is found between P and Q. By connecting the common (negative) terminal of the multimeter to R and the other (positive) terminal to P or Q, some resistance is seen on the multimeter. Which of the following is true for the transistor?
- It is a pnp transistor with R as emitter
- It is an npn transistor with R as collector
- It is an npn transistor with R as base
- It is a pnp transistor with R as collector
Sol: Correct answer is (3)
Q. 15. A block of mass 0.50 kg is moving with a speed of 2.00 ms-1 on a smooth surface. It strikes another mass of 1.00 kg and then they move together as a single body. The energy loss during the collision is
- 0.67 J
- 0.34 J
- 0.16 J
- 1.00 J
Sol:
Q. 16. A wave travelling along the x-axis is described by the equation 
If the wavelength and the time period of the wave are 0.08 m and 2.0 s, respectively, then 
in appropriate units are
Sol:
