Related InterviewSolutions

• What is the de – Broglie wavelength associated with an electron, accelerated through a potential difference of 200 volts?(a) 1 nm(b) 0.5 nm(c) 0.0056 nm(d) 0.086 nmI have been asked this question by my college director while I was bunking the class.I'd like to ask this question from Wave Nature of Matter in chapter Dual Nature of Radiation and Matter of Physics – Class 12
• How does retarding potential vary with the frequency of light causing photoelectric effect?(a) Infinite(b) Zero(c) Decreases(d) IncreasesThis question was posed to me by my school teacher while I was bunking the class.My question comes from Einstein’s Photoelectric Equation : Energy Quantum of Radiation in portion Dual Nature of Radiation and Matter of Physics – Class 12
• For a photosensitive surface, the work function is 3.3 × 10^-19 J. Calculate the threshold frequency.(a) 15 × 10^14 Hz(b) 25 × 10^14 Hz(c) 5 × 10^14 Hz(d) 55 × 10^14 HzThis question was posed to me during an online exam.My doubt stems from Einstein’s Photoelectric Equation : Energy Quantum of Radiation topic in chapter Dual Nature of Radiation and Matter of Physics – Class 12
• Calculate the energy of a photon of wavelength 6600 angstroms.(a) 30 × 10^-19 J(b) 3 × 10^-19 J(c) 300 × 10^-19 J(d) 3000 × 10^-19 JThe question was posed to me in an interview for internship.The above asked question is from Photoelectric Effect in section Dual Nature of Radiation and Matter of Physics – Class 12
• How many types of electron emissions exist?(a) 2(b) 3(c) 4(d) 1The question was asked by my college professor while I was bunking the class.I need to ask this question from Electron Emission in portion Dual Nature of Radiation and Matter of Physics – Class 12
• Which of the following is used in the Davisson – Germer experiment?(a) Double slit(b) Single slit(c) Electron gun(d) Electron microscopeThis question was addressed to me in final exam.The query is from Davisson and Germer Experiment topic in chapter Dual Nature of Radiation and Matter of Physics – Class 12
• While comparing the alpha particle, neutron, and beta particle, the alpha particle has the lowest de – Broglie wavelength.(a) True(b) FalseThe question was posed to me during a job interview.The doubt is from Wave Nature of Matter in chapter Dual Nature of Radiation and Matter of Physics – Class 12
• Which among the following shows the particle nature of light?(a) Photoelectric effect(b) Interference(c) Refraction(d) PolarizationThe question was posed to me in unit test.My enquiry is from Particle Nature of Light : The Photon in division Dual Nature of Radiation and Matter of Physics – Class 12
• The photoelectric effect is commonly found in solar panels.(a) True(b) FalseThe question was posed to me in unit test.Question is taken from Experimental Study of Photoelectric Effect topic in section Dual Nature of Radiation and Matter of Physics – Class 12
• Two beams, one of red light and the other of blue light, of the same intensity are incident on a metallic surface to emit photoelectrons. Which emits electrons of greater frequency?(a) Both(b) Red light(c) Blue light(d) NeitherThis question was posed to me in class test.This interesting question is from Einstein’s Photoelectric Equation : Energy Quantum of Radiation in division Dual Nature of Radiation and Matter of Physics – Class 12