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Statement I The decrease of air temperature with increasing altitudes in the atmosphere is called the vertical temperature gradient. Statement II In Troposphere, air temperature decreases with increasing altitude due to radiation from the earth.

Statement I The decrease of air temperature with increasing altitudes in the atmosphere is called the vertical temperature gradient. Statement II In Troposphere, air temperature decreases with increasing altitude due to radiation from the earth. Correct Answer Statement I is true but statement II is false

CONCEPT:

  • The decrease of air temperature with increasing altitudes in the atmosphere is called the vertical temperature gradient.
  • When the altitudes increases then atmospheric pressure decreases.

EXPLANATION:

  • As the decrease in temperature with respect to increasing in height is a vertical temperature gradient. So statement 1 is correct.
  • In troposphere, the gases of that region absorb less amount of radiation due the Sun. Due to which the temperature decreases by increasing height. So statement 2 is not correct.
  • As statement 1 is correct but statement 2 is wrong. So option 3 is correct.

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If altitude bubble is provided both on index frame as well as on telescope of a theodolite, then the instrument is levelled with reference to
i) altitude bubble on index frame
ii) altitude bubble on index frame if it is to be used as a level
iii) altitude bubble on telescope
iv) altitude bubble on telescope if it is to be used as a level
The correct answer is
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