MCQ
Filter circuit:
- AEliminates a.c. component.
- BEliminates d.c. component.
- CDoes not eliminate a.c. component.
- DNone of these.
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A normal eye is not able to see objects closer than 25cm because:
A conductor has 14.4 ×
coulombs positive charge. The conductor has (Charge on electron = 1.6
|
(a) 9 electrons in excess |
(b) 27 electrons in short |
|
(c) 27 electrons in excess |
(d) 9 electrons in short |

The reason of seeing the Sun a little before the sunrise is
|
(a) Reflection of the light |
(b) Refraction of the light |
|
(c) Scattering of the light |
(d) Dispersion of the light |
The phenomenon of light passing through the object is called: