The layer extends from the earth’s surface up to about 10 kilometers in altitude is
A) Stratosphere
B) Ionosphere
C) Mesosphere
D) Troposphere
1 Answers
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I. Central part of Indo-Gangetic plain extends from the rivers Ghaggar to Teesta.
Correct option is C) Only I is correct
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In the depth of 150 kms from the surface, the layer of the Earth consists
(A) Silicates
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Stratosphere layer extends up to a height of ………….. kms.
Stratosphere layer extends up to a height of 50 kms.
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The course of Tungabhadra river is in disputes as it extends in three states. To solve this problem
B) All the three states should make agreements and follow it on the basis of water availability
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The area of a parallelogram is 392 `m^(2)` . If its altitude is twice the corresponding base , determine is `392 m^(2)`. If its altitude is twice the
Correct Answer - Base = 14 m , altitude = 28 m
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Find the altitude at which the acceleration due to gravity is 25% of that at the surface of the Earth.
Given: gh = 25% of g = \(\frac{25}{100}\times\,g=\frac{g}{4}\), R = 6400 km = 6.4 × 106 m To find: Height (h) Formula: gh = \(g(\frac{R}{R+h})^2\) Calculation: From formula, \(\frac{g}{4}=g(\frac{R}{R+h})^2\) (R + h)2 = 4R2 R + h = 2R ∴ h = 2R – R ∴ h...
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If R is the radius of the Earth and g is the acceleration due to gravity on the Earth’s surface, the mean density of the Earth is
Correct option is: (D) \(\frac{3g}{4\pi RG}\)
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The troposphere extends from earth’s surface to a height of approximately
Correct option is D) 10 km
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Where on the earth’s surface is the value of angle of dip maximum? OR Where on the surface of earth is the angle of dip 90°?
Angle of dip (90°) is maximum at magnetic poles.
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Assertion: The time period of revolution of a satellite close to surface of earth is smaller then that revolving away from surface of earth. Reason: T
Correct Answer - A Both the Assertion and the Reason are correct and Reason is correct explanation of Assertion.
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