In order to produce a hologram, one needs, in addition to an object and a piece of photographic film,
A) a beam of monochromatic light and a mirror.
B) a beam of coherent light and a lens.
C) a beam of monochromatic light and a lens.
D) a beam of coherent light and a mirror.
D
You might also like to view...
The 99 years that revolutionized Astronomy ended with whose death?
a. Aristotle b. Kepler c. Tycho d. Copernicus e. Galileo
What is the circular velocity of an object orbiting Earth at a distance of 100,000 km from Earth's center?
G = 6.67 × 10?11 m3?kg?1?s?2; MEarth = 5.98 × 1024 kg
a.
2 m/s
b.
20 m/s
c.
200 m/s
d.
2000 m/s
e.
20,000 m/s
Transformers: A generator produces 60 A of current at 120 V. The voltage is usually stepped up to 4500 V by an ideal transformer and transmitted through a power line of total resistance 1.0 ?. Find the number of turns in the secondary if the primary has 200 turns.
A. 5 B. 200 C. 4500 D. 7500
241Am decays by alpha particle emission. The daughter isotope in this case is (the atomic numbers of Np, Pu, Am, Cm, and Bk are 91, 92, 93, 94, and 95 respectively)
A) 239Np. B) 237Np. C) 245Bk. D) 235Bk. E) not given.