Question

The temperature of a protostar can reach 1,500 K but they are very hard to detect in visible wavelengths because of their low luminosity and because they are surrounded by dust.

True
False

Answer 1

True. The temperature of a protostar can reach 1,500 K and they are difficult to detect in visible wavelengths due to their low luminosity and the presence of surrounding dust. However, they can be observed using infrared wavelengths or by their silhouette against a bright background.

Step-by-step explanation:

True

The temperature of a protostar can indeed reach 1,500 K. However, they are very hard to detect in visible wavelengths due to their low luminosity and the presence of surrounding dust. The dust obscures visible light, making it difficult to observe the protostar directly. But, they can be detected using infrared wavelengths or by observing the silhouette of the protostar against a bright background. Infrared radiation can penetrate the dust, allowing us to observe the protostar in the infrared region of the spectrum.