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Standard IX
Physics
Light Spectrum
Q. Which of t...
Question

Q. Which of the following statements characterizes the Mesosphere layer of the atmosphere?

Select the correct answer using the codes given below:


A
1 only
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B
2 only
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C
Both 1 and 2
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D
Neither 1 nor 2
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Solution

The correct option is D Neither 1 nor 2

Explanation:

  • Statement 1 is incorrect. The mesosphere lies above the stratosphere and is below the thermosphere.
  • Statement 2 is incorrect. The temperature in this layer starts reducing as one goes upwards from the Earth.

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Similar questions
Q. Match List I with List II and select the correct answer using the codes given below.
List I List II
A. Appleton layer 1. Lowest region of the atmosphere up to 7 km of the equator
B. Troposphere 2. The layer of the atmosphere, up to 50 km
C. Stratosphere 3. The layer of atmosphere 250 km above the earth's surface
D. Mesosphere 4. The layer of the atmosphere up to 80 km
Q.

Tick the correct answer.

(i) Which of the following gases protects us from harmful sun rays?

(a) Carbon dioxide

(b) Nitrogen

(c) Ozone

(ii) The most important layer of the atmosphere is

(a) Troposphere

(b) Thermosphere

(c) Mesosphere

(iii) Which of the following layers of the atmosphere is free from clouds?

(a) Troposphere

(b) Stratosphere

(c) Mesosphere

(iv) As we go up the layers of the atmosphere, the pressure

(a) Increases

(b) Decreases

(c) Remains the same

(v) When precipitation comes down to the Earth in the liquid form, it is called

(a) Cloud

(b) Rain

(c) Snow
Q.

Q. Consider the following statements:

Which of the above statements is/are correct?



  1. 1 and 2 only

  2. 2 only

  3. 2 and 3 only

  4. 1 and 3 only
Q.

Consider the following statements about atmosphere-

1. Temperature increase with increase in height in the troposphere.

2. Exosphere is divided into D.E.F.G Layers.

3. Temperature decreases with increasing height in mesosphere.

4. Over the equator, the temperature at tropopause is lowest while temperature over poles at tropopause is higher than that of over equator.

Choose the correct statements:


Q. Q. Consider the following statements:Which of the above statement/s is/are correct?

  1. 1 and 2 only

  2. 2 only

  3. 2 and 3 only

  4. 1 and 3 only
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