Physics Mcqs — Test 4
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Question 1
In the transistor schematic symbol, the arrow_______________?
Question 2
The semiconductor diode can be used as a rectifier because _______________?
Question 3
The device or circuit used for conversion of A.C. into D.C. is called_______________?
Question 4
In n-p-n transistor, p works as______________?
Question 5
Identify the correct statement about minority carriers_____________?
Question 6
The velocity of an oscillating charge as it moves to and fro along a wire is always_____________?
Question 7
The minimum wavelength of X-rays produced by the bombardment of electrons on the screen of a television set where the accelerating potential is 2.0K V will be______________?
Question 8
Maximum frequency in the spectrum from X-ray tube is directly proportional to the______________?
Question 9
X-rays are diffracted by a crystal but not by a diffraction grating because_____________?
Question 10
UV radiation can be produced by______________?