Choose the one alternative that best the statement or answers the question. The

Question

Choose the one alternative that best the statement or answers the question. The vertical height a wave is called. wavelength. amplitude. frequency. area. median. Which of the following visible colors of light has the highest frequency? red. blue. green. orange. yellow. The heat that is felt from a hot object is called radiation. infrared ultraviolet x-ray gamma. When waves of equal amplitude from two sources are out of phase when they it is called destructive interference. diffraction. effusion. amplitude. Calculate the wavelength (in nm) of the blue light emend by mercury lamp with a frequency of 6.88 times 10^14 Hz 485 nm 436 nm 675 nm 229 nm 206 nm Calculate the energy of the green light emitted, per photon by a mercury lamp with a frequency of 5.8 times 10^14 Hz. 5.46 times 10^- 19 J 1.83 times 10^- 19 J 468 times 10^- 19 J 2.75 times 10^- 19 J 3.64 times 10^- 19 J Which of the following statements is TRUE?

Explanation / Answer

(1) (B) The vertical height of wave is called amplitude

(2) (B) BLUE (frequency decreases in the order of VIBGYOR)

(3) (C) Infrared

(4) (A) Destructive interference

(5) Frequency = c / wave length

Wave length = 3* 108 / 6.88 *1014 = 436 nm

(A)
(6) E = h * frequency

E = 6.626 * 10-34 * 5.4 * 1014

E = 3.58 * 10-19 J

(E)

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