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Directions to Solve
In questions given below, a part of the sentence is italicised and underlined. Below are given alternatives to the italicised part which may improve the sentence. Choose the correct alternative. In case no improvement is needed, option 'D' is the answer.
ANS:B -
following
No answer description is available.
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A The variables ac and av are always local to main() B In place of ac and av, argc and argv should be used. C av[] contains addresses of arguments supplied at a command line D ac contains count of arguments supplied at command-line ANS:A - ac contains count of arguments supplied at command-line No answer description is available. Let's discuss.
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ANS:C -
dip
Magnetic dip, dip angle, or magnetic inclination is the angle made with the horizontal by the Earth's magnetic field lines. This angle varies at different points on the Earth's surface. Positive values of inclination indicate that the magnetic field of the Earth is pointing downward, into the Earth, at the point of measurement, and negative values indicate that it is pointing upward. The dip angle is in principle the angle made by the needle of a vertically held compass, though in practice ordinary compass needles may be weighted against dip or may be unable to move freely in the correct plane.
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ANS:B - False
Moving iron instruments can be used for both dc and ac.
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A size of component molecules are not equal.
B attractive forces between like and unlike molecules in the solution are approximately equal.
C chemical combination or molecular association between unlike molecules takes place in the formation of solution.
D component molecules are nonpolar.
ANS:C - component molecules are nonpolar.
The wrong statement is: "component molecules are nonpolar."
Raoult's law applies to ideal solutions, where the component molecules are assumed to be nonpolar. Ideal solutions are those where the intermolecular forces between like molecules (homogeneous interactions) are approximately equal to the intermolecular forces between unlike molecules (heterogeneous interactions), leading to ideal behavior as described by Raoult's law.
Therefore, if the component molecules were nonpolar, it would be consistent with the conditions for Raoult's law to apply.
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B first decreases, and then increases
ANS:D - first decreases, and then increases
For water, when the pressure increases, the viscosity typically decreases.
Here's an explanation:
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Viscosity: Viscosity is a measure of a fluid's resistance to flow. For water, viscosity decreases with increasing temperature and generally increases with increasing pressure.
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Effect of Pressure: Increasing pressure on water typically compresses its molecular structure slightly, reducing the space between molecules. This compression leads to a decrease in viscosity because the molecules can move more freely past each other under higher pressure, resulting in lower resistance to flow.
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Temperature and Pressure: While temperature primarily affects water viscosity more prominently, pressure also plays a role. At normal pressures and temperatures, the effect of pressure on water viscosity is relatively small compared to temperature changes. However, in general, increasing pressure tends to decrease water viscosity.
Therefore, the correct answer is:
decreases
As pressure increases, the viscosity of water tends to decrease, allowing it to flow more easily.
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B Karnataka and Tamil Nadu
D Gujarat and Himachal Pradesh
ANS:C - Gujarat and Karnataka
Gujarat and Karnataka were ranked as the 'best performers' in fostering a robust startup ecosystem, according to the DPIIT ranking. Additionally, Kerala, Tamil Nadu, and Himachal Pradesh were also distinguished as top performers in creating a conducive environment for budding entrepreneurs.
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ANS:B -
Uttar Pradesh
According to the NITI Aayog report, Uttar Pradesh has shown remarkable progress in poverty reduction, with 5.94 crore people successfully moving out of multidimensional poverty from 2013-14 to 2022-23. The NITI Aayog report reveals a significant achievement in India's fight against poverty, with 24.82 crore individuals escaping multidimensional poverty from 2013-14 to 2022-23.
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ANS:C - Andhra Pradesh
The inauguration of NACIN's new campus in Palasamudram, Andhra Pradesh, by the Prime Minister on January 16, signifies a crucial advancement in the region's educational infrastructure. The 500-acre campus is dedicated to training officials in indirect taxation and narcotics control administration at the national level.
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ANS:A - Tribal Group
The ₹540 crore allocation under PMAY-G, part of the PM-JANMAN package, is directed towards uplifting Particularly Vulnerable Tribal Groups (PVTGs), benefiting one lakh tribal families for the comprehensive development of their habitations.
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