Which statement best describes how an X-ray telescope detects a
supernova
O
A. The telescope absorbs long-wavelength electromagnetic energy
O
B. The telescope magnifies visible light in outer space.
C. The telescope senses heat in a pattern of different temperatures.
O
D. The telescope detects high-energy electromagnetic waves.

D. The telescope detects high-energy electromagnetic waves.

Explanation:

First of all, let's define what X-rays are.

X-rays are electromagnetic waves at high frequency and short wavelength.

The wavelength of X-rays span between 0.01 and 10 nanometers. X-rays are the second-highest frequency electromagnetic waves, after gamma rays, which have higher frequency.

The energy of an electromagnetic wave is directly proportional to its frequency, according to the equation:

where:

h is the Planck constant

f is the frequency of the wave

Since X-rays are high-frequency electromagnetic waves, it means that they also are high-energy electromagnetic waves.

Therefore, the correct answer is

D. The telescope detects high-energy electromagnetic waves.

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