The minimum energy required to remove an electron is called
|
(a) Stopping potential |
(b) Kinetic energy |
(c) Work function |
(d) None of these |
The minimum energy required to remove an electron is called
|
(a) Stopping potential |
(b) Kinetic energy |
(c) Work function |
(d) None of these |
(c) Work function
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A wire is broken in four equal parts. A packet is formed by keeping the four wires together. The resistance of the packet in comparison to the resistance of the wire will be
|
(a) Equal |
(b) One fourth |
(c) One eight |
(d) |
Which of the following is coldest planet
|
(a) Mercury |
(b) Pluto |
(c) Earth |
(d) Venus |
The unit of intensity of electric field is
|
(a) Newton/Coulomb |
(b) Joule/Coulomb |
(c) Volt - metre |
(d) Newton/metre |
Positive rays consists of
|
(a) Electrons |
(b) Neutrons |
|
(c) Positive ions |
(d) Electro magnetic waves |
Three charges - and
are placed as shown in the figure. The x-component of the force on -
is proportional to
|
(a) |
(b) |
(c) |
(d) |
