When point source is kept at 20 cm distance from photcell ,stopping voltage obtained is `V_(0)` When source distance is changed to 1m, stopping potential will be ……..

When the light source is kept 20 cm away from a photo cell, stopping potential 0.6 V is obtained. When source is kept 40 cm away, the stopping potential will be

a source of light in placed at a distance 4m from a photocell and the stopping potential is then 7.7 volt. If the distence is helved the stopping potential now will be

When light source is placed at 1 m distant from photo electric cell , then value of stopping potential is obtained 4 volt. If it is placed at 4 m distant, then value of stopping potential becomes -

When a point source of light is at a distance of 50 cm from a photoelectric cell , the cut-off voltage is found to be V_(0) . If the same source is placed at a distance of 1 m from the cell , then the cut-off voltage will be

A point source is kept at a distance of 1000 m has an illumination I. To change the illumination to 16I the new distance should become

When a point source of light is at a distance of one metre from a photo cell , the cut off voltage is found to be V . If the same source is placed at 2 m distance from photo cell , the cut off voltage will be

When a point source of light is at a distnace of 1 m from a photo cell, the cut off voltage is is found to be V. if the same source is placed at 3m distance from photo cell, the cut of voltage will be

When a monochromatic point source of light is at a distance of 0.2 m from a photoelectric cell, the cut off voltage and the saturation current are respectively 0.6 V and 18.0 mA. If the same source is placed 0.6 m away from the photoelectric cell, then (a) the stopping potential will be 0.2 V (b) the stopping potential will be 0.6 V (c ) the saturation current will be 6.0 mA (d) the saturation current will be 2.0 mA

When a monochromatic source of light is at a distance of 0.2 m from a photocell, the stopping potential (cut off voltage) and the saturation current are found to be respectively 1 V and 27 mA. If the same source is placed at a distance 0.6 m from the cell, then