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JEEMAIN and NEET
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JEEMAIN PAST PAPERS
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2003
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Q)
The de-Broglie wavelength of a tennis ball of mass 60 g moving with a velocity of 10 m/s is approximately : <br> (Plancks constant, $h =6.63 \times 10^{-34} Js$)
( A ) $10^{-31} m$
( B ) $10^{-25} m$
( C ) $10^{-16} m$
( D ) $10^{-33} m$
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