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Define the terms threshold frequency and stopping potential in relation to the phenomenon of photoelectric effect. How is the photoelectric current affected on enhancing the
(i) frequency
(ii) intensity of the incident radiations and why?
State the Applications of JFET FET is used as a (1) Buffer amplifier (2) Low Noise Amplifier (3) Cascaded Amplifier (4) Analog Switch (5) Chopper (6) Ph
Can lighting optic fiber to be spliced or joined? All fibers can be spliced along with difficulty and more or less success. The problem is the losses resulting from that a join
Q. Why the centre of Newton's rings pattern appears dark? The thickness of the air film becomes zero at the point of contact of lens L with glass plate P. Therefore there is no
According to their frequencies, waves are separated into three categories: (1) Audible or sound waves : Range 20 Hz to 20 KHz. These are formed by vibrating bodies like as voc
BH curve: For any ferromagnetic material there is a definite value of flux density (B), corresponding to a specified value of magnetising force (H). These values can be ascert
True or False 1)Clothes always get static cling when dried in a clothes dryer 2) Dust stick to all charged objects 3) Static Electricity always stays in one place and never move
is always del U o in cyclic process
What are the Electric Generators? An electric generator is a situation in which a loop of conducting wire rotates in an area with a magnetic field. During the first half of t
The collision between two bodies be elastic if bodies are?
Explain about the dispersion in optical fibres. Dispersion in optical fibres: Into optical fibers, temporal distribution of optical pulses because of dispersion will lead to
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