The more negative potential of grid, the more electrons will be:
Attracted
Repelled
Attracted as well as repelled
Neither attracted nor repelled
The sensation of sound persists in our brain for:
0.1 sec
0.01 sec
1 sec
10 sec
An object is placed at the Centre of curvature of a concave mirror. The image produced by the mirror is located:
Out beyond the centre of curvature
At the centre of curvature
Between the centre of curvature and the focal point
At the focal point
The center of curved surface of spherical mirror is called:
Focus
Axis
Centre
Pole
The index of refraction depends on:
The focal length
The speed of light
The image distance
The object distance
