A. Heat engine
B. Human body
C. Atmosphere
D. Laboratory
Physics
We can produce heat by…………….?
A. Frictional process
B. Chemical processes
C. Electrical processes
D. All of the above
At constant temperature the graph between V and 1/P is………….?
A. Hyperbola
B. Parabola
C. A curve of any shape
D. A straight lime
The scales of temperature are based on two fixed points which are……………..?
A. The temperatures of water at 0? 100?C
B. The temperature of melting ice and boiling water at atmospheric pressure
C. The temperatures of ice cold and boiling water
D. The temperatures of frozen and boiling mercury
Temperature is a property which determines……………..?
A. How much heat a body contains
B. Whether a body will feel hot or cold to touch
C. In which direction heat will flow between two systems
D. How much total absolute energy a body has
Dimension of pressure is………………?
A. MLT
B. ML-1T-1
C. ML-1T-2
D. ML-2T-2
The specially designed semi-conductor diodes used as fast counters in electronic circuits are……………?
A. The light emitting diodes
B. Photo diodes
C. Photo voltaic cell
D. Solar cells.
The rectangular voltage is an example of………………..?
A. An analogue waveform
B. Continuous wave form
C. Electronic waveform
D. A digital waveform
An OP-AMPs can amplify……………?
A. D.C.
B. A.C.
C. Both A.C. & D.C.
D. None of the above
Acceptor and donor impurities donate…………..?
A. n-carriers only
B. p-carriers only
C. p-carriers and n-carriers respectively
D. n-carriers and p-carriers respectively