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Dual Nature of Radiation question

2003 · Shift 0 · Q122

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JEE Main
Physics
Dual Nature of Radiation
2003 · Shift 0 · Q122

Dual Nature of Radiation question

2003 · Shift 0 · Q122

JEE MainPhysicsDual Nature of RadiationMCQ+4 / −1

Two identical photo-cathodes receive light of frequencies

{f_1}

and

{f_2}

. If the velocities of the photo electrons (of mass

m

) coming out are respectively

{v_1}

and

{v_2},

then

A
$v_1^2 - v_2^2 = {{2h} \over m}\left( {{f_1} - {f_2}} \right)$
B
${v_1} + {v_2} = {\left[ {{{2h} \over m}\left( {{f_1} + {f_2}} \right)} \right]^{1/2}}$
C
$v_1^2 + v_2^2 = {{2h} \over m}\left( {{f_1} + {f_2}} \right)$
D
${v_1} - {v_2} = {\left[ {{{2h} \over m}\left( {{f_1} - {f_2}} \right)} \right]^{1/2}}$

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