The de Broglie wavelength of a tennis ball of mass 60 g moving with a velocity of 10 metres per second is approximately (Planck's constant h = 6.63 × 10–34 Js] [AIEEE 2003]

• A. 10–33 metre
• B. 10–31 metre
• C. 10–16 metre
• D. 10–25 metre