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Ashok0210

Asked: April 27, 2021In: Class 12 Physics

The photoelectric cut-off voltage in a certain experiment is 1.5 V. What is the maximum kinetic energy of photoelectrons emitted?

Class 12 Physics CBSE and UP Board Dual Nature of Radiation and Matter Chapter-11 Exercise 11.3 NCERT Solutions for Class 12 Physics Chapter 11 Question-3

Ashok0210

Asked: April 27, 2021In: Class 12 Physics

The work function of caesium metal is 2.14 eV. When light of frequency 6 ×10¹⁴ Hz is incident on the metal surface, photoemission of electrons occurs. What is the (a) maximum kinetic energy of the emitted electrons, (b) Stopping potential, and (c) maximum speed of the emitted photoelectrons?

Class 12 Physics CBSE and UP Board Dual Nature of Radiation and Matter Chapter-11 Exercise 11.2 NCERT Solutions for Class 12 Physics Chapter 11 Question-2

Ashok0210

Asked: April 27, 2021In: Class 12 Physics

Find the (a) maximum frequency, and (b) minimum wavelength of X-rays produced by 30 kV electrons.

Class 12 Physics CBSE and UP Board Dual Nature of Radiation and Matter Chapter-11 Exercise 11.1 NCERT Solutions for Class 12 Physics Chapter 11 Question-1

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