MCQ
A $ 200\,g $ golf ball is moving with a speed of $5$ $m$ per hour. The associated wave length is $(h = 6.625 \times {10^{ - 34}}\,J{\rm{ - }}sec)$
- A${10^{ - 10}}\,m$
- B${10^{ - 20}}\,m$
- ✓${10^{ - 30}}\,m$
- D${10^{ - 40}}\,m$
✓
Answer
Correct option: C.
${10^{ - 30}}\,m$
c
(c) $\lambda = \frac{h}{{mv}} = \frac{{6.625 \times {{10}^{ - 34}}}}{{0.2\,kg \times \frac{5}{{60 \times 60\,m{s^{ - 1}}}}}} = {10^{ - 30}}\,m$.
(c) $\lambda = \frac{h}{{mv}} = \frac{{6.625 \times {{10}^{ - 34}}}}{{0.2\,kg \times \frac{5}{{60 \times 60\,m{s^{ - 1}}}}}} = {10^{ - 30}}\,m$.
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