Explore topic-wise InterviewSolutions in Current Affairs.

Sovereignty according to law is known as legal sovereignty. Legal soveregin is the lawers concept of sovereignty. The authority, a person or body of persons which has power to issue and enforce the laws of state.

The HLPF is the main United Nations platform on sustainable development and it has a central role in the follow-up and review of the 2030 Agenda for Sustainable Development and the Sustainable Development Goals (SDGs) at the global level.

Given, c is the specific heat of the alloy. Suppose that the alloy is heated through θºc.

Now mass of the alloy,

M = m₁ + m₂ + m₃+. . … . . +m_n.

The amount of heat required to heat the alloy is given by

Q = (m₁ + m₂+. . … . . +m_n)cθ. …(i)

Also, Q = m₁c₁θ + m₂c₂θ + m₃c₃θ+. . … . . +m_nc_nθ …(ii)

From the eqn. (i) and (ii)

(m₁ + m₂ + m₃+. . … . . +m_n) cθ

= (m₁c₁ + m₂c₂ + m₃c₃+. . … . . +m_nc_n)θ

c = \(\frac{m_1c_1+m_2c_2+m_3c_3+.....+m_nc_n}{m_1+m_2+m_3+.....+m_n}\)

1 gram steam at 100ºC has 540 cals heat more than water at same temperature due to latent heat. It makes heating system based on steam circulation, more efficient.

1. The earth’s atmosphere acts like an insulating blanket around it and does not allow heat to escape out but reflects it back to the earth. If it were absent, the heat would have escaped and the planet would be very cold. 

2. Steam has a higher heat capacity (due to the latent heat) than boiling water. Therefore steam-based water heating systems are more effective.

The lower layers of earth’s atmosphere reflect infrared radiations from earth back to the surface of earth. Thus the heat radiations received by the earth from the sun during the day are kept trapped by the atmosphere. If atmosphere of earth were not there, its surface would become too cold to live.  

The net charge of an electric dipole is zero.  

चूँकि दिए गए अवकल समीकरण में उच्चतम कोटि का अवकलज y’ है जिसकी कोटि 1 तथा घात 1 है।

अत: अवकल समीकरण की कोटि 1 तथा घात 1 है।

चूँकि अवकल समीकरण में उपस्थित उच्चतम कोटि की अवकलज y’ है जिसकी कोटि 1 तथा घात 1 है।

अतः समीकरण की कोटि 1 तथा घात 1 है।

चूँकि दिए गए अवकल समीकरण में उच्चतम कोटि का अवकलज  है

d²y/dx² 

जिसकी कोटि 2 तथा घात 1 है। अतः अवकल समीकरण की कोटि 2 तथा घात 1 है।

चूँकि दिए गए अवकल समीकरण में उच्चतम कोटि का अवकलज y”’ है जिसकी कोटि 3 तथा घात 1 है। अतः अवकल समीकरण की कोटि 3 तथा घात 1 है।

कोटि = 2, घात = 1

चूँकि दिए गए अवकल समीकरण में उच्चतम कोटि का अवकलज y”’ है जिसकी कोटि 3 तथा घात 1 है।

अतः अवकल समीकरण की कोटि 3 तथा घात 1 है

cos^-1(1/2) + 2sin^-1(1/2) = π/3 + 2 x π/6 = π/3 + π/3 = 2π/3

माना cos^-1x = θ ∴ cosθ = x 

∴ cos3θ = 4cos³θ – 3cos θ 

⇒ cos3θ = 4x³ – 3x 

⇒ 3θ = cos^-1(4x³ – 3x) 

∴ 3cos^-1x = cos^-1(4x³ – 3x)

Given tan^-1(x/y) - tan^-1((x - y)/(x + y)) = tan^-1(x/y) - tan^-1((x/y - 1)/(x/y + 1))

= tan^-1(x/y) - (tan^-1(x/y) - tan^-1)  (∵ tan^-1x - tan^-1y = tan^-1((x - y)/(1 + x.y)))

tan^-11 = π/4

D) Changed Hyderabad into Hindu state

black / brown / black / black

She is 13 years old.

short / average height / medium height /tall

(D) The required numbers in ascending order are : 3, 6, 9, 12, 15, 18, 21, 24, 27 ,30, 33, 36, 39, 42, 45. The 9th number from the top is 27.

She is 5′ tall.

She is beautiful. She has brown eyes and long, black hair.

She likes sports and music.

She is my neighbour.

5.305 × 100 = 530.5

239.27 × 10 (number of zeroes in 10 is one. 

So, decimal point has to shift to one place right in the product). 

∴ 239.27 × 10 = 2392.7

To check the entry of the children in the garden, the Giant built a high wall all around the garden and put up a notice board : “Tresspassers will be prosecuted.”

Seeing the little boy the Giant became angry because he had put a notice board to check the entry of the boys.

‘One summer evening’; ‘small circles glittering idly in the moon’; ‘she was an elfin pinnace’; ‘my boat went heaving through the water like a swan’; ……… a huge peak, black and huge, as if with voluntary power instinct, upreared its head.’

Probably because the boy was very young, he was not allowed to row it on his own, or probably the owner of the boat did not like anyone touching his boat. Here the boy does not inform the owner or take his permission to use the boat. Hence Wordsworth says that the boy’s moving of the boat is an act of stealth. It was an act of stealing and his joy and thrill of adventure were troubled by a sense of guilt.

Fear caused by the sight of the huge, black peak.

Two peaks are mentioned: The first one is a craggy ridge, the one the boy wanted to reach; the second one is a black and huge peak which looms suddenly in front of him.

(a) his conscience pricks him on his stealthy act.

(a) He is frightened by the ‘approaching’ peak.

Taking the boat away all by himself.

(a) The boy is trembling.

(b) The figure of speech used here is “Transferred Epithet”.

(c) (a) He is frightened by the ‘approaching’ peak.

(C) Virupaksha

Correct option is (b) Abul Fazl

1. I have experienced a burning sensation when bitten by an ant. 

2. The sensation is due to the presence of formic acid that the ant releases.

➢ Evaporation is the phenomenon in which a liquid changes to gaseous state below its boiling point.

➢ Water molecules are attracted by other water molecules in all directions.

➢ But at the surface of water, the water molecules are pulled only inward that is below the surface of water.

Note: Evaporation is a phenomenon that theoretically takes place in all liquids. But in general when we say evaporation we mean evaporation of water.

The industrial wastes are neutralised before disposting into water bodies because, factory wastes often contain acid, if it reaches a river, the acid will kill aquatic life and thus brings damage to the entire ecosystem.

Correct option is B) Methyl orange

A substance that can exist in the gaseous state at a temperature at which normally it is a solid or liquid is called vapour.

Examples of solids that can exist as vapour: camphor, naphthalene

Correct option is C) CO₂

Base is a substance that gives OH on dissolving in water.