With the increase in principle quantum number, the energy difference between the two successive energy levels
|
(a) Increases |
|
(b) Decreases |
|
(c) Remains constant |
|
(d) Sometimes increases and sometimes decreases |
(b) Decreases
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The angle of dip is the angle
|
(a) Between the vertical component of earth's magnetic field and magnetic meridian |
|
(b) Between the vertical component of earth's magnetic field and geographical meridian |
|
(c) Between the earth's magnetic field direction and horizontal direction |
|
(d) Between the magnetic meridian and the geographical meridian |
In an experiment, a graph was plotted of the potential difference V between the terminals of a cell against the circuit current i by varying load rheostat. Internal conductance of the cell is given by
|
(a) xy |
(b) |
(c) |
(d) (x – y) |
On an electric heater 220 volt and 1100 watt are marked. On using it for 4 hours, the energy consumed in kWh will be
|
(a) 2 |
(b) 4.4 |
(c) 6 |
(d) 8 |
If the thermionic current density is J and emitter temperature is T then the curve between 
and 
will be
(a)
|
(b)
|
(c)
|
(d)
|
In the network of resistors shown in the adjoining figure, the equivalent resistance between A and B is
|
(a) 54 ohm |
(b) 18 ohm |
(c) 36 ohm |
(d) 9 ohm |
