The physical structure of the human eye enables it to sense light of wavelengths up to 0.0005 millimeters; infrared radiation, however, is invisible because its wavelength—0.1 millimeters—is too long to be registered by the eye.
A. infrared radiation, however, is invisible because its wavelength—0.1 millimeters—is too long to be registered by the eye
B. however, the wavelength of infrared radiation—0.1 millimeters—is too long to be registered by the eye making it invisible
C. infrared radiation, however, is invisible because its wavelength—0.1 millimeters—is too long for the eye to register it
D. however, because the wavelength of infrared radiation is 0.1 millimeters, it is too long for the eye to register and thus invisible
E. however, infrared radiation has a wavelength of 0.1 millimeters that is too long for the eye to register, thus making it invisible
In-depth Explanation and Correct Answer Below (so you don’t see it while reviewing the question)
The physical structure of the human eye… Explanation
The physical structure of the human eye enables it to sense light of wavelengths up to 0.0005 millimeters; infrared radiation, however, is invisible because its wavelength—0.1 millimeters—is too long to be registered by the eye.
(A) infrared radiation, however, is invisible because its wavelength—0.1 millimeters—is too long to be registered by the eye
(B) however, the wavelength of infrared radiation—0.1 millimeters—is too long to be registered by the eye making it invisible
Wrong subject: the wavelength of infrared radiation. The main subject should be the infrared radiation itself. Is the wavelength invisible or the radiation? This option points to the wavelength. Also, the “it” is ambiguous. Does it refer to the wavelength or the radiation?
(C) infrared radiation, however, is invisible because its wavelength—0.1 millimeters—is too long for the eye to register it
What is the “it” at the end? Fill in all of the possible singular nouns.
(D) however, because the wavelength of infrared radiation is 0.1 millimeters, it is too long for the eye to register and thus invisible
Wrong subject: the wavelength of infrared radiation. The main subject should be the infrared radiation itself. Is the wavelength invisible or the radiation? This option points to the wavelength.
(E) however, infrared radiation has a wavelength of 0.1 millimeters that is too long for the eye to register, thus making it invisible
The “that” changes the meaning by talking about a specific .1 millimeter wavelength that is too long for the eye to register. Also, the “it” is ambiguous. Does it refer to the wavelength or the radiation?
Correct Answer: A
For some SC guidance, here’s a link to a breakdown of GMAT sentence correction.