Photoelectric Effect

1. Explain Einstein's equation of the photoelectric effect?

Question 1 of 18

2. According to Planck E= h x c/Lambda where h and c are constants then it means that radiation with longer wavelength possess low energy while radiation with shorter wavelength possess high energy?

Question 2 of 18

3. According to Planck, E=hf such that E= h x Lambda. True or False?

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4. Einstein's photoelectric equation is equal to:

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5. Which of the following is not among the application of photoelectric effect?

Question 5 of 18

6. According to Planck, the energy E possessed by one photon is given by:

Question 6 of 18

7. The no. of photoelectrons produced is directly proportional to the intensity. True or False?

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8. The Kinetic energy of photoelectrons produced is directly proportional to the energy of radiation. True or False?

Question 8 of 18

9. Explain Light energy and Quantum theory according to Max Planck

Question 9 of 18

10. The minimum frequency beyond which no photoelectric emission can occur is called?

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11. For emission of photoelectrons to occur from a metal surface it must meet what conditions?

Question 11 of 18

12. The maximum wavelength beyond which no photoelectric emission can occur is called?

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13. Mention the functions of photo emissive cells

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14. What is the minimum amount of work energy needed to dislodge an electron from a metal surface?

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15. Which are the key factors affecting the photoelectric effect?

Question 15 of 18

16. All metals have the same minimum frequency for photo emission. True or False?

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17. Explain what happens when an electromagnetic wave of sufficient frequency is irradiated on a metal surface?

Question 17 of 18

18. The amount of energy which is absorbed by an electron on a METAL surface when a photon strikes it varies from one metal to another. True or False?

Question 18 of 18