Planck's constant has same dimensions energy angular momentum c) mass (d) force

Q: Which of the following experiments is an evidence that electrons exhibit wave properties? i) The…

A: Davisson and Germer experiment demonstrated that the wave nature of the electron, through electron…

Q: In what year did Planck publish his famous equation? O 1936 O 1900 O 1905 O 1912

A: The mathematical equation for the Famous Planck equation is given as, E = hv Here, h is the Planck's…

Q: Which of the following principles of classical physics is violated in the Bohr model? (select all…

A: The principal of classical physics which says that "accelerating charges radiate energy" violates…

Q: A hydrogen atom releases a photon with an energy of 12.5eV.  a) Determine the frequency of the…

A: A photon is ideally a massless particle that travels at the speed of light. The energy possessed by…

Q: What is the de-Broglie wavelength of (a) a bullet of mass 0.040 kg travelling at the speea of 1.0…

A: Here, we calculate  the de- broglie wavelength of bullet and ball as given follow;

Q: 4. In an experiment on photoelectric effect, the slope of the cut-off voltage versus frequency of…

A: For the Photoelectric effect, from Einstein Photoelectric equation: Slope=h/eorh=Slope×ehere,…

Q: 8. In the photoelectric effect, the work function is a) the amount of energy required to release an…

A: Work function is the  energy required to withdraw an electron completely from a metal surface. This…

Q: 8) What is the DeBroglie wavelength of an electron traveling at a speed of 0.5c?

A:

Q: MCQ 22: The beam of electrons can be produced with the help of A. anode-ray tube B. cathode-ray tube…

A:

Q: What is the wavelength of the photon emitted when an electron in the third excited state of neon…

A: Given: Neon atomic number Z=10            ni=3 and nf=1 To find: Wavelength of photon emitted when…

Q: Which physicist discoverd x-rays?   a. Wilhelm Rontgen   b. Nikola Tesla   c. James Clerk…

A:

Q: The basic theorem/principle used to obtain mass-energy relation is _____________ a) Heisenberg’s…

A: To find: The basic theorem/principle used to obtain mass-energy relation is

Q: 42. Which of the following do not provide scientific evidence for the concept of quantized energy?…

A: The concept of quantized energy refers to the idea that energy can only exist in discrete packets or…

Q: 2 Quantization A mass of m = 1.5kg oscillates at the end of a spring with a spring constant k =…

A: Given,m=1.5 kgk=20 N/m

Q: A mass of m= 1.5 kg oscillates at the end of a spring with a spring constant k = 20 N/m. According…

A: k = 20 N/m m = 1.5 kg x0 = 3 cm = 0.03 m