If the distance of screen from a CRT to center of deflection plates is 15 cm, the length of

If the distance of screen from a CRT to center of deflection plates is 15 cm, the length of deflection plates is 2 cm, the distance between the plates is 1 cm and accelerating voltage is 500 V, deflection sensitivity is 

 (a) 33.2 V/cm (b) 0.03 cm/V (c) 66.4 V/cm (d) 0.015 cm/V
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If the distance of screen from a CRT to center of deflection plates is 15 cm, the length of deflection plates is 2 cm, the distance between the plates is 1 cm and accelerating voltage is 500 V, deflection sensitivity is 0.03 cm/V

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