In the following arrangement y = 1.0 mm, d= 0.24 mm and D = 1.2 m. The work function of the material of the emitter is 2.2 eV. The stopping potential V needed to stop the photo current will be

If assertion is true but reason is false.

In the following arrangement y = 1.0 mm, d= 0.24 mm and D = 1.2 m. The

1.	In the following arrangement y = 1.0 mm, d= 0.24 mm and D = 1.2 m. The work function of the material of the emitter is 2.2 eV. The stopping potential V needed to stop the photo current will be
A.	0.9 V
B.	0.5 V
C.	If assertion is true but reason is false.
D.	0.1 V
Answer» B. 0.5 V

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In the following arrangement y = 1.0 mm, d= 0.24 mm and D = 1.2 m. The work function of the material of the emitter is 2.2 eV. The stopping potential V needed to stop the photo current will be

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