In a transition from one vibrational state to another, a molecule emits a photon of wavelength 5.56 µm
What is the energy difference between these two states? (c = 3.00 × 108 m/s, h = 6.626 × 10-34 J ? s, 1 eV = 1.60 × 10-19 J)
A) 13.6 MeV B) 13.6 eV C) 0.223 eV D) 0.223 MeV E) 2.23 MeV
C
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Thin Lenses: Which statement about a single thin lens is correct?
A. A converging lens always produces a real inverted image. B. A diverging lens always produces a virtual inverted image. C. A converging lens sometimes produces a real upright image. D. A diverging lens always produces a virtual upright image. E. A diverging lens produces a virtual upright image only if the object is located between the lens and its focal point.
Which of the following is a key factor in explaining why many jovian moons have been more geologically active than the Moon or Mercury?
A) Jovian moons contain much more ice that can melt or deform at lower temperatures than can the rock and metal that make up the Moon and Mercury. B) The jovian moons are considerably larger than the Moon and Mercury and therefore have retained much more internal heat. C) The jovian moons probably have far more internal heat generated by radioactive decay than do the Moon or Mercury. D) Because of their greater distances from the Sun, the jovian moons receive much less heat from the Sun.
Which one of the following is the correct order of the electromagnetic spectrum from low to high frequencies?
A) radio waves, infrared, microwaves, UV, visible, X-rays, gamma rays B) radio waves, UV, X-rays, microwaves, infrared, visible, gamma rays C) radio waves, microwaves, infrared, visible, UV, X-rays, gamma rays D) radio waves, microwaves, visible, X-rays, infrared, UV, gamma rays E) radio waves, infrared, X-rays, microwaves, UV, visible, gamma rays
An (blank) is an engineered structure along a river that effectively raises the heihgt of the river bank and thus confines flood discharge
What will be an ideal response?