In an X-ray machine, an electron is subjected to a force of 10^-23N.Time taken by the electron to cover a distance of 10 cm is √x ×10^y s . Then the value of x & y is ?
Rohan , 9 Years ago
Grade 10
1 Answers
Vikas TU
Last Activity: 8 Years ago
F = 10^-23 N = m x acceleration.
accln. = 10^-23/(9.1 x 10^-31) m/s^2
from second law of eqn.
x = 0 + 0.5at^2
x = 0.5*10^-23/(9.1 x 10^-31)*t^2
or
10/100 = 0.5*10^-23/(9.1 x 10^-31)*t^2
Solving for t time we get,
t = 1.82 x 10^-8 seconds.
x = 1.82 and y = 8.
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