Equivalent resistance between A and B will be
|
(a) 2 ohm |
(b) 18 ohm |
(c) 6 ohm |
(d) 3.6 ohm |
Equivalent resistance between A and B will be
|
(a) 2 ohm |
(b) 18 ohm |
(c) 6 ohm |
(d) 3.6 ohm |
(d) 3.6 ohm
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
In the circuit as shown in the figure the effective capacitance between A and B is
|
(a) 3 μF |
(b) 2 μF |
(c) 4 μF |
(d) 8 μF |
In good conductors of electricity, the type of bonding that exists is
|
(a) Ionic |
(b) Vander Waals |
(c) Covalent |
(d) Metallic |
At a certain distance from a point charge the electric field is 500 V/m and the potential is 3000 V. What is this distance
|
(a) 6 m |
(b) 12 m |
(c) 36 m |
(d) 144 m |
An object is placed at a distance of 20 cm from a convex lens of focal length 10 cm. The image is formed on the other side of the lens at a distance
|
(a) 20 cm |
(b) 10 cm |
(c) 40 cm |
(d) 30 cm |
On heating a liquid, the refractive index generally
|
(a) Decreases |
|
(b) Increases or decreases depending on the rate of heating |
|
(c) Does not change |
|
(d) Increases |
As per Bohr model, the minimum energy (in eV) required to remove an electron from the ground state of doubly ionized Li atom (Z = 3) is
|
(a) 1.51 |
(b) 13.6 |
(c) 40.8 |
(d) 122.4 |
$\text{I}_0$
$\frac{\text{I}_0}{4}$
$\frac{\text{I}_0}{2}$
$4\text{I}_0$