SCIENCE ONE LINE QUESTIONS

01-	The unit of frequency is	Hertz
02-	The unit of resistance is	Ohm
03-	The device which makes or breaks a circuit is	Switch
04-	The path of an electric current is known as a	Circuit
05-	Device which opposes the flow of electric current is known as	Resistor
06-	Arc Lamp was invented by	C.F.Brush
07-	Television was invented by	J.L.Baird
08-	Transistor was invented by	J.Bardeen,W.Shockley and W.Brattain
09-	The unit of wavelength of light is	Angstrom
10-	A device which converts light into electricity is known as	Photo cell
11-	Hertz was the first to discover	Radio waves
12-	Marconi invented	Radio
13-	In 1901,Marconi beamed a signal from Cornwall in England to	Newfoundland
14-	Thomas Edison was an	American inventor
15-	A glass tube with two electrodes is called a	Diode
16-	Lee de Forest was an	American scientist
17-	Lee de Forest discovered the	Triode
18-	Radio and television transmit signals using	Electromagnetic waves
19-	To turn pictures into electrical signals,television Cameras rely on	Photo-electric effect
20-	Transistor was invented in the year	1948
21-	The first electronic components invented were the	Thermionic valves
22-	Microchip was invented in the year	1958
23-	Microchip was invented by	Jack Kilby
24-	The microchip invented first was also the first	Integrated circuit
25-	Silicon and germanium are ideal examples of	Semi conductors