JEE · NEET Previous Year Question
When a metal surface is illuminated by light of wavelength , the stopping potential is . When the same surface is illuminated by light of wavelength , stopping potential is . The threshold wavelength for this surface is:
Topic: JEE PYQ
Answer: C. Full step-by-step solution below.
- A
- B
- C
- D
Correct answer: C
Solution
(c)on solving (i) & (ii)
More Dual Nature of Matter & Radiation PYQs
- If the wavelength of the first member of Lyman series of hydrogen is . The wavelength of the second member will be
- A proton and an electron are associated with same de-Broglie wavelength. The ratio of their kinetic energies is: (Assume…
- When light of wavelength 300 nm (nanometer) falls on a photoelectric emitter, photoelectrons are liberated. For another emitter, h…
- A charged particle is accelerated from rest through a certain potential difference. The de-Broglie wavelength is …
- An electron of mass and a photon have same energy . The ratio of de-Broglie wavelengths associated with them is [NEET 201…