Question

# Uncertainty in position of a minute particle of mass 25g in space is $$10^{-5}m$$. What is the uncertainty in its velocity $$(in\ ms^{-1})$$? $$(h=6.6 \times 10^{-34}Js$$)

A
2.1×1034
B
0.5×1034
C
2.1×1028
D
0.5×1023

Solution

## The correct option is C $$2.1 \times 10^{-28}$$$$mass=25g, \Delta x=10^{-5}m$$$$\Delta x.m. \Delta v=\cfrac{h}{4\pi }$$$$\Delta v=\cfrac{h}{\Delta x.m. 4\pi }$$$$\Delta v=2.1 \times 10^{-28}\ m/s$$Option C is correct.Chemistry

Suggest Corrections

0

Similar questions
View More

People also searched for
View More