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Atomic and Nuclear Physics
{
{"An object of mass, m=5, at the origin has a velocity of (12 i - 18 \
j)m/s at t = 0. It is accelerated at a constant rate for 5 seconds \
after which it has a velocity of (5 i - 7 j)m/s."},
{"1. What is the magnitude of the resultant force acting on the \
object during this time interval?
TraditionalForm]\)= .....................N"},
{"2. How far is it from the origin after 3 seconds?
{"3. What is the speed after 3 seconds? Sp = \
.......................m/s"}
}
{"An object of mass, m=5, at the origin has a velocity of (12 i - 18 \
j)m/s at t = 0. It is accelerated at a constant rate for 5 seconds \
after which it has a velocity of (5 i - 7 j)m/s."},
{"1. What is the magnitude of the resultant force acting on the \
object during this time interval?
TraditionalForm]\)= .....................N"},
{"2. How far is it from the origin after 3 seconds?
{"3. What is the speed after 3 seconds? Sp = \
.......................m/s"}
}
Atomic and Nuclear Physics
How is energy convertable in matter?Please site examples.
Atomic and Nuclear Physics
the ratio of energy required to remove an electron from the first three bohrs orbit of hydrogen is?
Atomic and Nuclear Physics
A photo sensitive material surface is illuminated alternatively with light of wave length 3100Å and 6200Å. It is observed that maximum speed of the photo electron in two cases are in ratio 2:1 the work function of metal is......
(hc=12400eVÅ)
(hc=12400eVÅ)
Atomic and Nuclear Physics
The work function of substances is 4eV. What is the longest wave length of light that can cause the emission of photo electric from this substances?
Atomic and Nuclear Physics
When the electromagnetic radiation of frequency 4*10^15 Hz and 6*10^15 Hz fall on a same metal in different experiment, the ratio of the maximum kinetic energy of electron liberated 1:3. What is the threshold frequency for the metal?
Atomic and Nuclear Physics
When a metallic surface is illuminated with light of wave length (lambda),the stopping potential is X volt.when the same surface is illuminated of wave length 2lambda, stopping potential is X/3 threshold wave length for the metallic surface is....
Atomic and Nuclear Physics
a monochromatic point source of light is placed at a distance d from a metal surface.plate electron are ejected at a rate n per sec with maximum kinetic energy E.if the source brought nearer to distance d/2, the rate and maximum kinetic energy per photo electric become...
Atomic and Nuclear Physics
Light frequency 1.5 times the threshold frequency is incident on photo sensitive material of the frequency is 1/2 and intensity become double.the photo electric current become....
Atomic and Nuclear Physics
reasons that why the electrons cannot reside in energy gap or forbidden band gap?
