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Which of the following are true regarding ionosphere? I. It is the uppermost layer of atmosphere II. The molecules and atoms of nitrogen and oxygen in this layer absorb a part of solar radiation and become ionized III. This layer is responsible for reflecting back the radio wave transmitted from the earth

Which of the following are true regarding ionosphere? I. It is the uppermost layer of atmosphere II. The molecules and atoms of nitrogen and oxygen in this layer absorb a part of solar radiation and become ionized III. This layer is responsible for reflecting back the radio wave transmitted from the earth Correct Answer II and III

Answer: Option 3

The following that are true regarding ionosphere are The molecules and atoms of nitrogen and oxygen in this layer absorb a part of solar radiation and become ionized and This layer is responsible for reflecting back the radio wave transmitted from the earth.

Related Questions

Which of the following are true regarding ionosphere?
I. It is the uppermost layer of atmosphere
II. The molecules and atoms of nitrogen and oxygen in this layer absorb a part of solar radiation and become ionized
III. This layer is responsible for reflecting back the radio wave transmitted from the earth
A layer in the Earth's atmosphere called Ionosphere facilitates radio communication. Why? 1. The presence of ozone cause the reflection of radio waves to Earth. 2. Radio waves have a very long wavelength. Which of the statements given above is/are correct?
A layer in the Earth's atmosphere called Ionosphere facilitates radio communication. Why?
1. The presence of ozone causes the reflection of radio waves to Earth.
2. Radio waves have a very long wavelength.
Which of the statements given above is fare correct?
All the forms of matter except gases emit electromagnetic radiation continuously. The gases which electrically or thermally excited emit a certain wavelength only, then which of the following is/are true about the process (i) The spacing between the atoms in the other forms of matter is high than in gas (ii) The spacing between the atoms in gases is high than the other forms of matter (iii) The energy of the emitted radiation depends on the spacing between the atoms (iv) The wavelength of the emitted radiation depends on the spacing between the atoms 
Why does the ionosphere of the Earth's atmosphere facilitate radio communication? i. The presence of ozone causes the reflection of radio waves to earth ii. Radio waves have a very long wavelength
Which of the following statements is correct regarding the oxidation number of Oxygen? I. The oxidation number of Oxygen in most compounds is -2. II. When Oxygen is bonded to Fluorine in compounds like Oxygen difluoride and Dioxygen diflouride, the Oxygen is assigned an oxidation number of +2 and +2 respectively. III. In peroxide, an Oxygen atom is assigned an oxidation number of -1 and in Superoxide, each oxygen atom is assigned an oxidation number of -1/2.
The solar radiation that is felt at the earth’s surface includes (i) Direct radiation that has passed through the atmosphere (ii) Diffuse radiation from the sky (iii) Absorbed radiation from the water Identify the correct statement
Consider the following statements regarding the nitrogen cycle: 1. Nitrogen in gaseous form can be used by all living organisms. 2. Nitrogen can be fixed in the atmosphere by lightning and cosmic radiation. 3. Bacteria can convert nitrates into free nitrogen. Which of the statements given above is/are correct?
Of the total radiation coming to earth some part is reflected back, some part is absorbed by the atmosphere and the rest reaches to the earth. what is the percentage of reflected, absorbed and the radiation reaches to the earth?
Which of the following represent represents correct matching of the layers of atmosphere. A. Exosphere (i) Layer help in radio transmission. B. Troposphere (ii) Upper most layer of atmosphere. C. Stratosphere (iii) Lower most layer of atmosphere D. Thermosphere (iv) Layer contains ozone gas.