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Q. Define: ionisation potential?
The ionisation potential is that increase speed potential which makes the impinging electron acquires sufficient energy to knock out an electron from the atom and thereby ionise the atom.
13.6 V is the ionisation potential of hydrogen atom.
functions of the time base on the C.R.O
Cathode rays are made up of: (1) Positively charged particles (2) Negatively charged particles (3) Neutral particles (4) None of these Ans: (2)Negatively charged pa
A child's toy train moves at a constant speed of 2.0 cm/s. a. Illustrate the position-time graph showing the position of the toy for 1.0 min. b. What is the slope of the lin
what is momentum ?
show that work is a path function not a property
A ball dropped from a balloon at rest clears a tower 81m high during the last quater second of its journey. Find the height of the balloon and the velocity of the body when it rea
What are different pumping mechanisms in LASERS?
what is power of lens?
Q. Illustrate what two properties of electromagnetic waves are used to attach info to radio signals? Answer:- By changing the amplitude of a radio wave you can encode info
VELOCITY: The time rate of change of displacement of a body is known as velocity. It is represented by V ?.
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