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)
10–33 metre
10–31 metre
10–16 metre
10–25 metre
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In an atom, an electron is moving with a speed of 600 m/s with an accuracy of 0.005%. Certainity with which the position of the electron can be located is(h = 6.6 × 10–34 kg m2s–1, mass of electron, em = 9.1 × 10–31 kg)