Questions from College Physics

Q: (a) What is the energy in joules of an x

(a) What is the energy in joules of an x-ray photon with wavelength 1.00 x 10-10 m? (b) Convert the energy to electron volts. (c) If more penetrating x - rays are desired, should the wavelength be inc...

Q: Find the energy of (a) A photon having a

Find the energy of (a) A photon having a frequency of 5.00 x 1017 Hz and (b) A photon having a wavelength of 3.00 x 102 nm. Express your answers in units of electron volts, noting that 1 eV = 1.60 x 1...

Q: (a) Find a symbolic expression for the wavelength λ of

(a) Find a symbolic expression for the wavelength λ of a photon in terms of its energy E, Planck’s constant h, and the speed of light c. (b) What does the equation say about the wavelengths of higher...

Q: (a) How many minutes does it take a photon to

(a) How many minutes does it take a photon to travel from the Sun to the Earth? (b) What is the energy in eV of a photon with a wavelength of 558 nm? (c) What is the wavelength of a photon with an ene...

Q: Find the speed of light in (a) Water,

Find the speed of light in (a) Water, (b) Crown glass, and (c) Diamond.

Q: A ray of light travels from air into another medium, making

A ray of light travels from air into another medium, making an angle of θ1 = 45.0° with the normal as in Figure P22.7. Find the angle of refraction θ2 if the secon...

Q: The two mirrors in Figure P22.8 meet at a right

The two mirrors in Figure P22.8 meet at a right angle. The beam of light in the vertical plane P strikes mirror 1 as shown. (a) Determine the distance the reflected light beam travels before striking...

Q: An underwater scuba diver sees the Sun at an apparent angle of

An underwater scuba diver sees the Sun at an apparent angle of 45.0° from the vertical. What is the actual direction of the Sun?

Q: Suppose reflected white light is used to observe a thin, transparent

Suppose reflected white light is used to observe a thin, transparent coating on glass as the coating material is gradually deposited by evaporation in a vacuum. Describe some color changes that might...

Q: Two plane mirrors are at right angles to each other as shown

Two plane mirrors are at right angles to each other as shown by the side view in Figure P22.10. A light ray is incident on mirror 1 at an angle θ with the vertical. Using the law of refle...