Heisnbeg uncertainty

Select all that applies regarding Photoelectric current / effect.

• Depends on frequency of incident radiation.

• Independent on intensity of incident radiation.

• Depends on nature of emitting surface.

• The kinetic energy of electrons depends on intensity of radiation.

The basic principle behind quantum mechanics is

how many photons does it take to emit one electron in photoelectric effect?

• three

• zero

• infinite

• one

The highest point on a wave is:

• the crest
• the trough
• the top
• the coast 

If position of a particle is less accurate then its momentum is?

• more accurate

• less accurate

• no change in measurement

• same

Do you really find Quantum Mechanics and Classical Mechanics SAME

• YES

• NO

What does the p stand for?

• power

• momentum

• pressure

• principle axis

The operator ∇² is called _______ operator

• Hamiltonian

• Laplacian

• Poisson

• Vector

The bigger the mass of particle, then ..........is its wavelength

• same as mass

• equal

• smaller

• higher

The slope of the kinetic energy versus frequency graph in the case of photoelectric effect, is

• n h / e

• h / n e

• h / e

• h e