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 Compton Effect makes the use of the law of conservation of: Energy Momentum Charge Both (a) & (b)
2 The unit Compton wavelength is same as: Compton wavelength Compton frequency Compton shift Both (a) & (b)
3 In Compton effect, it was considered that X-rays consist of: Electrons Positrons Photons All of these
4 A.H Compton studied the scattering of X-rays by loosely bound electrons from a graph target in: 1905 1911 19251 1923
5 Photo cells is a device which convert light into: Wave nature Particle nature Particle wave nature Dual nature
6 Photo cells are used for : Security and counting system Automatic door system Automatic street lighting All of these
7 In a photocell, certain metal emits electrons for : Visible light Infrared light Ultraviolet light All of these
8 In a photocell, cesium coated oxidized silver emits electrons for : Visible light Infrared light Ultraviolet light All of these
9 In a photocell, sodium and potassium emit electrons for: Visible light Infrared light Ultraviolet light All of these
10 A photo cell is based on: Compton effect Pair production Photo cell All of these
11 The maximum kinetic energy of emitted photoelectrons depends upon: The intensity of incident light Frequency of the incident light Temperature of the surface All of above
12 The minimum energy required by an electron to eject from metal surface is known as: Photo energy Critical energy Threshold energy Work function
13 In photoelectric effect, electrons are emitted: Slowly Intermittently Both (a) & (b) Instantly
14 In photoelectric effect, electrons are emitted with: Same energy Different energies Both (a) & (b) Intermittent energies
15 The photoelectric effect was explained by: Einstein Davison Hertz Planck
16 The stopping potential for a certain metal is 10 volt, the max. Energy of emitted electron is: 10 J 100 J 1.6 × 10-18 J 1.6 × 10-19 J
17 There is a certain frequency below which no electrons are emitted from the metal surface, this frequency is known as: Critical frequency Threshold frequency Maximum frequency Minimum frequency
18 The maximum energy of the photoelectrons depends upon: Frequency of incident light Intensity of incident light Nature of metal Both (a) & (c)
19 The maximum energy of the photoelectrons can be determined by making the: Anode positive Anode negative Cathode positive Both (b) & (c)
20 Moving photons posses: Energy Momentum Wavelength All of these
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