Question

1. astronomers use different types of telescopes to observe different parts of the electromagnetic spectrum. this allows astronomers to study objects in space. each type of electromagnetic wave can travel through space at the speed of light. sometimes astronomers will use two telescopes on opposites sides of a planet and combine the image from each telescope. when combined, the two telescopes act like one giant telescope and have the ability to reveal important details from space.

chart: electromagnetic spectrum with wavelength (m) and frequency (hz) axes, labeled regions: radio, microwave, infrared, visible, ultraviolet, x - ray, gamma ray

if astronomers are detecting electromagnetic waves with a wavelength of (10^{-5}), what type of wave are they detecting?

options:

• infrared rays
• ultraviolet
• microwave
• radio waves

Explanation:

Step1: Analyze the EM spectrum graph

The graph shows wavelength (m) values: Radio (≥\(10^{-3}\)), Microwave (\(10^{-2}\) to \(10^{-3}\)? Wait, no—check labels. Infrared is labeled at \(10^{-5}\) m (since the infrared region is between \(10^{-5}\) and \(10^{-6}\)? Wait, the x - axis for wavelength: the infrared region is marked with wavelength \(10^{-5}\) m (looking at the graph, the infrared segment is associated with wavelength \(10^{-5}\) m). Let's check the options: Infrared Rays, Ultraviolet, Microwave, Radio waves. The wavelength given is \(10^{-5}\) m. From the graph, the infrared region has wavelength around \(10^{-5}\) m (the infrared label is above \(10^{-5}\) m on the wavelength axis). Microwave is around \(10^{-2}\) to \(10^{-3}\)? No, wait the microwave is between \(10^{-2}\) (wavelength) and radio. Wait the wavelength axis: radio is \(≥10^{-3}\) m, microwave is \(10^{-2}\) to \(10^{-3}\)? No, the graph's wavelength (m) labels: Radio (leftmost, \(10^{-3}\) m and above), Microwave (\(10^{-2}\) m), Infrared (\(10^{-5}\) m), Visible (\(10^{-6}\) m), etc. So \(10^{-5}\) m matches the infrared region.

Step2: Match wavelength to wave type

The wavelength of \(10^{-5}\) m corresponds to the infrared region in the electromagnetic spectrum graph provided. So the wave is Infrared Rays.

Answer:

Infrared Rays (the option with label "Infrared Rays")