MDCAT Physics Chapter 14 Electronics Online Test With Answers

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MDCAT Physics Chapter 14 Electronics Online Test

Sr. # Questions Answers Choice
1 J.J Thomson finds: Particle nature of the electron Dual nature of electron Wave nature of electron Electromagnetic nature of electron
2 G.P Thomson revealed: Particle nature of electron Dual nature of electron Wave nature of electron Electromagnetic nature of electron
3 Interference and diffraction of light confirms its: Particle nature Dual nature Wave nature Electromagnetic nature
4 Davisson and Germer received the Nobel prize for their work on: Wave nature of particle Corpuscular nature of wave Dual nature of particle All of them
5 De-Broglie received the Nobel prize on his work on: Wave nature of particle Corpuscular nature of wave Dual nature of particle All of them
6 De-Broglie received the Nobel prize in 1929 1937 1928 1924
7 Diffraction pattern has also been observed for: Proton Neutron Hydrogen atom All of them
8 In order to perform experiment, Davisson and Germer used accelerating voltage of: 54V 120V 220V 400V
9 Davisson and Germer, in their experiment used: Nickle crystal Lead crystal Graphite crystal Glass
10 Which of the particles, electron, proton and neutron moving with same speed has longest wave length? Electron Proton Neutron All have same
11 Interference and diffraction confirm: Particle nature Wave nature Dual nature None of these
12 The number of electrons emitted depend upon Colour of target surface Shape of surface Frequency of incident light Intensity of incident light
13 Rest mass energy of electron is: 1.02 MeV 0.51 MeV 931 MeV 200 MeV
14 In photoelectric effect, if we increase the frequency of the incident light then of the electrons increased Number K.E P.E Frequency
15 The unit of work function is eV Volt Farad Herdz
16 The maximum kinetic energy of emitted photoelectrons depends upon: The intensity of incident light Frequency of incident light Metal surface Both frequency of incident light and metal surface
17 In order to increase the K.E of ejected photo electrons, there should be an increase in: Intensity of radiation NoneI Frequency of radiation Both (b) & (c)
18 The reverse process of photo-electric effect is called: Pair production Compton effect Annihilation of matter X-rays
19 Potassium cathode in photocell emits electrons for a light: Visible Infrared Ultraviolet X-rays
20 Photoelectric effect and Compton effect prove the: Wave nature of light Particle nature of light Dual nature of light Dual nature of light
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