Physics 10th Class English Medium Unit 7 Online Test With Answers

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Physics 10th Class English Medium Unit 7 Online Test

Sr. # Questions Answers Choice
1 If Current flowing through switch then the output is expressed as: 0 1 -1 2
2 The device which converts digital quantities into analog quantities is called: ADC DAC ACD CAD
3 The base of computer operation are: 1,2 0, 1 0, 2 1, 10
4 Those quantities whose values do not remain constant are called: physical quantities Digital quantites Log quantities Analog quantities
5 Those quantities whose values change gradually or stay constant are called: Physical quantities Digital quantities Log quantities Analog quantities
6 Which device is used to show the change in the value of current or electrical potential as a graph? Cathode ray tube Electron gun Oscilloscope Transformer
7 For the emission of electrons from the tungsten filament the values of current and voltage are taken as: 0.1 A and 2V 0.2 A and 4V 0.3A and 6V 0.4A and 8V
8 The emission of electron from the surface of hot metal is called: Ionization Conduction Thermionic emission Convection
9 In 1950, physicists observed that in cathode ray tube a special type of rays produced from cathode, these rays were called: Cathode rays X-rays Alpha rays Gamma rays
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