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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
×
10
−
34
J
s
)
( A )
10
−
31
m
( B )
10
−
25
m
( C )
10
−
16
m
( D )
10
−
33
m
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