KVPY SA Exam 05-Nov-2017 Question Paper

Question : 41 of 80

Marks: +1, -0

A 20 g object is moving with velocity 100 ms

^{–1}

. The de Broglie wavelength (in m) of the object is
[Planck’s constant h = 6.626 ×10

^{–34}

J s]

Solution:

λ=h/{mv}={ 6.626 ×10 ^{–31}}/ {20 ×10 ^{-3}×100}

= 3.313 × 10^{–34}

Go to Question:

Prev Question

Next Question