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In the Young’s double slit experiment, for which colour the fringe width is least
|
(a) Red |
(b) Green |
(c) Blue |
(d) Yellow |
When a PN junction diode is reverse biased
|
(a) Electrons and holes are attracted towards each other and move towards the depletion region |
|
(b) Electrons and holes move away from the junction depletion region |
|
(c) Height of the potential barrier decreases |
|
(d) No change in the current takes place |
Which of the following gates will have an output of 1
|
(a)
(a)
|
(b)
|
(c)
|
(d)
|
Maximum useable frequency (MUF) in F-region layer is x, when the critical frequency is 60 MHz and the angle of incidence is 70°. Then x is
|
(a) 150 MHz |
(b) 170 MHz |
(c) 175 MHz |
(d) 190 MHz |
When an unpolarized light of intensity 
is incident on a polarizing sheet, the intensity of the light which does not get transmitted is
|
(a) Zero |
(b) |
(c) |
(d) |
The mass of a photo electron is
|
(a) 9.1 |
(b) 9.1 |
(c) 9.1 |
(d) 9.1 |
