- AAny nuclei.
- BHeavy nuclei.
- CLighter nuclei.
- DNuclei lying in the middle of periodic table.
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The mutual characteristic curves of a triode are as shown in figure. The cut off voltage for the triode is

| (a) 0 V | (b) 2 V | (c) – 4 V | (d) 6 V |
In the given current distribution what is the value of I

|
(a) 3A |
(b) 8 A |
(c) 2A |
(d) 5A |
Light of wavelength 589.3 nm is incident normally on the slit of width 0.1 mm. What will be the angular width of the central diffraction maximum at a distance of 1 m from the slit
|
(a) 0.68° |
(b) 1.02° |
(c) 0.34° |
(d) None of these |
Three plates of common surface area A are connected as shown. The effective capacitance will be

|
(a) |
(b) |
(c) |
(d) |
Barrier potential of a P-N junction diode does not depend on
|
(a) Temperature |
(b) Forward bias |
(c) Doping density |
(d) Diode design |
For a cell, the graph between the potential difference (V) across the terminals of the cell and the current (I) drawn from the cell is shown in the figure. The e.m.f. and the internal resistance of the cell are
|
(a) 2V, 0.5Ω |
(b) 2V, 0.4 Ω |
(c) >2V, 0.5 Ω |
(d) > 2V, 0.4 Ω |