When a point source of light is at a distance of $50 c m$ 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:

V_{0} / 4

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V_{0} / 2

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V_{0}

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2 V_{0}

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Solution

The correct option is C $V_{0}$
Shopping potential is Independent of distance (only Intensity depends upon distance). Hence ,New stopping potential mill remain unchanged
$∴$ It is $V_{0}$

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When a point source of light is at a distance of 50cm from a photoelectric cell, the cut -off voltage is found to be V0.If the same source is placed at a distance of 1m from the cell,then the cut -off voltage will be:

The correct option is C V0Shopping potential is Independent of distance (only Intensity depends upon distance). Hence ,New stopping potential mill remain unchanged ∴ It is V0

When a point source of light is at a distance of $50 c m$ 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:

The correct option is C $V_{0}$
Shopping potential is Independent of distance (only Intensity depends upon distance). Hence ,New stopping potential mill remain unchanged
$∴$ It is $V_{0}$