Physics FSC Part 2 Chapter 19 Online MCQ's Test With Answers

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Physics FSC Part 2 Chapter 19 Online MCQ's Test

Sr. # Questions Answers Choice
1 Application of wave like nature of particle is Photodiode Optical microscope Electron microscope Compound microscope
2 The principle regarding the dual nature of light was first discovered by Heisenberg Compton J.J.Thomson De-Broglie
3 Photodiode is used for wave nature of. Light Thermal radiation Radi waves Sound waves
4 The wavelength associated with the protons moving at speed of 40 m/s is. 7.20 nm 9.02 15.7 nm 17.3 nm
5 Which is the most refined form of matter. Smoke Fog Light Electron
6 Wave nature of light appears in Pair production Compton effect Photo electric Interference
7 In an nihilation emitted photons moves in opposite directions to conserve. Mass Charge Energy Momentum
8 The photon with energy greater than 1.02 MeV can interact with matter as. Photoelectric effect Compton effect Pair production annihilation of matter
9 Disintegration of photon on striking a nucleus into an electron and positron is known as. Annihilation of matter Compton effect Pair production Photo electric effect
10 In Compton scatting, the value of shift is equal to Compton's wavelength, when X-rays is scattered at the angle of. 90<sup>o</sup>C Zero 120<sup>o</sup>C 45<sup>o</sup>C
11 Maximum Compton shift is observed at. 30<sup>o</sup>C 90<sup>o</sup>C 45<sup>o</sup>C 180<sup>o</sup>C
12 The quantity/factor h/moc has the dimensions of. Length Time Mass Energy
13 Compton effect proves. Wave nature of radiation Wave nature of particle Dual nature of particle Particle nature of radiations
14 Photo electrons are emitted y using visible light when the metal is. sodium Copper Nicked Cobalt
15 Pair production can take place only when energy of radiation is equal and greater than 1.02 MeV, thus correct option is. X rays Gama rays Heat Radiation Ultraviolet rays
16 Light of 4.5 eV is incident on a Cesium surface and stopping potential is 0.25 eV, maximum K.E. of emitted electron is. 4.5 eV 4.25 eV 4.75 eV 0.25 eV
17 The energy of the photon of wavelength 500 nm is. 3.10 eV 2.49 eV 1.77 eV 1.52 eV
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