Question

0.972 gram silver is obtain by passing 5 ampere electric current for 193 second through aqueous solution of AgNO3 between graphite electrode. Calculate efficiency of electrolytic cell​

Answer 1

The uncertainity of a moving bullet of mass 10g is 10^-5 m. Calculate the uncertainity in its velocity?

According to uncertainty principle

Δx.Δmv = ℎ / 4π

Δv = ℎ 4πmΔ

x=6.626 × 10−34 / 4×3

=> ×14×10−2×10−5

=> 5.27×10−28 m/s ...