A body of mass \( x \) kg is moving with velocity of \( 100 \mathrm{~m} \) \( \mathrm{sec}^{-1...

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A body of mass \( x \) kg is moving with velocity of \( 100 \mathrm{~m} \) \( \mathrm{sec}^{-1} \). Its de-Broglie wavelength is \( 6.62 \times 10^{-35} \mathrm{~m} \). Hence \( \mathrm{x} \) is \( \left(\mathrm{h}=6.62 \times 10^{-34} \mathrm{~J} \mathrm{sec}\right) \) :
(a) \( 0.25 \mathrm{~kg} \)
(b) \( 0.15 \mathrm{~kg} \)
(c) \( 0.2 \mathrm{~kg} \)
(d) \( 0.1 \mathrm{~kg} \)
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