- Kinetic energy.
- Total mechanical energy.
- Potential energy.
- Total energy.
Explanation:
The potential energy of a two particle system depends only on the separation between the particles.
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Given below are four logic gate symbol (figure). Those for OR, NOR and NAND are respectively

|
(a) 1, 4, 3 |
(b) 4, 1, 2 |
(c) 1, 3, 4 |
(d) 4, 2, 1 |
A charge
exerts some force on a second charge
. If third charge
is brought near, the force of
exerted on ![]()
|
(a) Decreases |
|
(b) Increases |
|
(c) Remains unchanged |
|
(d) Increases if |
Two parallel slits 0.6 mm apart are illuminated by light source of wavelength 6000 Å. The distance between two consecutive dark fringes on a screen 1 m away from the slits is
|
(a) 1 mm |
(b) 0.01 mm |
(c) 0.1 m |
(d) 10 m |
Five capacitors of 10 μF capacity each are connected to a d.c. potential of 100 volts as shown in the adjoining figure. The equivalent capacitance between the points A and B will be equal to

|
(a) 40 μF |
(b) 20 μF |
(c) 30 μF |
(d) 10 μF |
Potential difference across the terminals of the battery shown in figure is (r = internal resistance of battery)

|
(a) 8 V |
(b) 10 V |
(c) 6 V |
(d) Zero |
A bright star is indicated to have a brightness magnitude of – 5 compared to a star of brightness zero magnitude. It means that this star compared to the reference star of zero brightness is
|
(a) 100 times less bright |
(b) 5 times more bright |
|
(c) 5 times less bright |
(d) 100 times more bright |