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UKPSC Prelims 2024GS-IQ. 73 of 237
Q. 731 markMedium
UKPSC Prelims 2024·GS-I
What will be the de Broglie wavelength of a ball of mass 0.12 kg moving with a speed of 20 m s⁻¹?
(a)6.63 × 10⁻³⁰ m
(b)6.63 × 10⁻³⁴ m
(c)2.76 × 10⁻³⁰ m
(d)2.76 × 10⁻³⁴ m