An interpretation of the photoelectric effect is that:
1.Light is emitted only when electrons change orbits.
2.Light has a wavelike character.
3.Light is absorbed in quanta of energy E = h?
4.Electrons have an associated wave having wavelength ? = h/p.
5.Photons must have some minimum energy to penetrate a material.
6.More than one of the above
3
You might also like to view...
The largest satellite orbiting a terrestrial planet is ____________________
Fill in the blank(s) with correct word
A star is observed with a surface temperature of 3,000 K and a luminosity of 10?2 solar. What is the approximate mass of this star?
A) 0.5 Msun B) 0.9 Msun C) 0.2 Msun D) The mass cannot be determined.
Each 2.0-m length of a long cylinder (radius = 4.0 mm) has a charge of 4.0 nC distributed uniformly throughout its volume. What is the magnitude of the electric field at a point 5.0 mm from the axis of the cylinder?
A. 9.9 kN/C B. 8.1 kN/C C. 9.0 kN/C D. 7.2 kN/C E. 18 kN/C
Conversion of Units: A football field is 120 yd long and 50 yd wide. What is the area of the football field, in square meters, given that 1.0 yd = 91.44 cm?
A. 2.4 × 103 m2 B. 3.7 × 103 m2 C. 4.2 × 103 m2 D. 5.0 × 103 m2