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Correct answer is option (B)

 तवर्ग – त, थ, द, ध, न, दन्त-स्थान से उच्चारण होता है ।

(d) Statement I is false, but Statement II is true.

During the 1880s and '90s scientists searched cathode rays for the carrier of the electrical properties in matter. Their work culminated in the discovery by English physicist J.J. Thomson of the electron in 1897.

Power of convex lens, P₁ = \(\frac{1}{f_1}\)

Power of concave lens, P₂ = \(\frac{1}{-f_2}\) 

Combination will have power,

P = P₁ + P₂

 = \(\frac{1}{f_1}+\frac{1}{-f_2}\)

Given that   = \(\frac{1}{f_1}=\frac{1}{f_2}\) or P₁ = P₂

∴ P   = \(\frac{1}{f_1}+\frac{1}{-f_2}\) = 0 

light will pass undeviated

Option : (c) semiconductor

Option : (d) 3.2 x 10^-4 N/m

• The conventional flow of current is based on the direction of the motion of holes 
• In NPN transistor, current enters from the base into the emitter.

The minimum energy needed for an electron to escape from the metal surface is called work function of that metal. It’s unit is electron volt (eV).

Here n = 3; h = 6.6 x 10^-34 Js

Angular momentum

L = \(\frac{nh}{2π}\) = \(\frac{3 \times 6.6 \times 10^{-34}}{2 \times 3.14}\) = 3.15 x 10^-34 Js

The phenomenon of spontaneous emission of highly penetrating radiations such as α, β and γ rays by an element is called radioactivity.

W_h = ηB^1.6_max fV watt; Volume V = 50/(7.8 x 10³) = 6.41 x 10^-3m³

∴ W_h = 628 × 1.3^1.6 × 25 × 6.41 × 10^{− 3} = 152 J/s

Loss in one hour = 153 × 3,600 = 551,300 J 

As per Steinmetz law, hysteresis loss = ηB^1.6_max J/m³/cycle

Also, hysteresis loss = xy (area of B/H loop)

Equating the two, we get

628 × 1.3^1.6 = 12.5 × 0.1 × loop area

∴ loop area = 628 × 1.3^1.6/1.25 = 764.3cm²

(a) W_h = xy × (area of B/H loop) 

= 1,000 × 0.2 × 9.3 = 1860 J/m² /cycle 

(b) W_h = 1,860 × 50 J/s/m³ = 93,000 W/m³ 

(c) W_h = B^1.8_max fV W For a given specimen, W_h B^1.8_max

In (b) above, 93,000 α 1.51.8 × 50 and W_h α 1.21.8 × 30

∴ W_h/93,000 = (1.2/1.5)^1.8 x 30/50;

W_h = 93,000 x 0.669 x 0.6 = 37.360

Hysteresis loss = xy (area of B/H loop) J/m³ /cycle

Now, 1 cm = 200 AT/m ; 1 cm = 0.1 Wb/m²

∴ x = 200, y = 0.1, area of loop = 48 cm²

∴ loss = 200 × 0.1 × 48 = 960 J/m³ /cycles, Density = 7.8 × 10² kg/m² 

Volume of 1 kg of material = mass/density = 1/7.8 × 10³m³ 

∴ loss = 960 × 1/7.8 × 10³J/cycle No. of reversals/second = 50 

∴ loss = 960 × 50 × 10⁻³/7.8 = 6.15 J/s or watt 

∴ hysteresis loss = 6.15 watt/kg.

Hysteresis loss = 250 J/m³ /cycle, Mass of iron = 10 kg

Volume of iron specimen = 10/7.5 × 10³m³ = 10⁻²/7.5 m³ 

No. of cycles of reversals/hr = 60 × 50 = 3000 

∴ loss/hour = 250 × (10⁻²/7.5) × 3000 = 1000 J 

= 1000/36 × 10⁵ = 27.8 × 10⁻⁵kWh

Series Parallel combination of Inductors has to be dealt with. Note that there is no mutual coupling between coils.

L_AB = 0.5 + [0.6 × 0.3/(0.3 + 0.3)] = 0.7 H

(a) Combined inductance is given by L = L₁ + L₂ ± 2M 

∴ 0.5 = L₁ + L₂ + 2M ...(i), 

0.2 = L1 + L2 − 2M ...(ii) 

Subtracting (ii) from (i), we have 4M = 0.3 

or M = 0.075 H 

(b) Adding (i) and (ii) we have 0.7 = 2 × 0.2 + 2L₂ = 0.15 H

(c) Coupling factor or coefficient is k = M/√(L₁L₂) 

= 0.075/√(0.2 + 0.15) = 0.433 or 43.4%

(d) e₁ = L₁(di/dt) ± M(di/dt)

∴ e₁ = (0.2 + 0.075) × 1000 = 275 V

= (0.2 − 0.075) × 1000 = 125 V

Loss = xy (area of B/H loop) J/m³/cycle

= 0.1 × 50 × 93 = 465 J/m³/cycle

Volume = 1500 cm³ = 15 × 10⁻⁴ m³ ;

No. of reversals/second = 65

∴ W_h = 465 × 15 × 10⁻⁴ × 65J/s = 45.3W

Which language is spoken by the majority of population in Brussels, the capital city of Belgium?

Manoj Night Shymalan

Ludhiana is the largest makers of cycles in the world

Charles Dickens wrote about the terrible effects of industrialization on people's lives and character.

Nilgiri biosphere reserve

The Roman Catholic Church maintained an Index of Prohibited Books from 1558 to impose severe control over publishers and booksellers.

The French built canals and draining land in order to increase cultivation. The vast system of irrigation was meant to increase rice production in Vietnam. Surplus rice could be exported to Europe, which was proved highly profitable to the French.

(a) Hydrogen Bonding

Hydrogen bonding is responsible for the stability of alpha-helical structure of proteins.

The larger the dielectric constant, the more charge can be stared. completly filled the space between capacitar plates with a dielectric increase the capacitance by a factor of dielectric constant

C = KC₀

where C₀ is the capacitance with no dielectric b/w the plates

given C₀ = 1.77 μF

k = 6.7

then,

C = KC₀

C = 6.7 x 1.77 μF

C = 11.85 μF

1. Bivalent 

2. Zygotene

SMEs stands for Small and Medium-sized Enterprises.

1. (i) – d 

2. (ii) – c 

3. (iii) – a 

4. (iv) – b

The act of putting together or making up by combining parts or ingredients. something formed in this manner or the resulting state or quality; a mixture. the parts of which something is composed or made up; constitution.

A group of indifference curves is called indifference map.

(a) Consumer will spend 1^st and 2^nd rupe to buy 1^st and 2nd units of Y. This will give total of U units. If the 1^st two rupees were spent on 1^st unit of X then 16 units would be received.

(b) TU = 93 units

(c) MUx/ Px = MUy/ Py subject to PxX + PyY = M

12/2 = 6/1…. subject to (2)(3) + (1) (6) = 12

a) Rationing system 

b) Comprehensive Insurance Scheme 

c) Loans to farmers without interest. 

d) Unemployment wages

Social justice means that all the members of the society are equals. Social justice ensures that all the people in the nation are given equal opportunities and equal consideration. Social justice does not approve any discrimination on the basis of religion, caste, color or gender.

MU  is  Zero .

Control is related to Results.

(A) Beginning

(D) All the above

An ordinary resolution is one which can be passed by simple majority, i.e. if the members of votes cast by members, entitled to vote in favour of the resolution is more than the votes cast against the resolution. 

Ordinary Resolution is required for the following matters:

• To change or rectify the name of the company 
• To alter the share capital of the company 
• To redeem the debentures

• Treasury Bills in the Treasury Market
• Money at Call and Short Notice in the Call Loan Market
• Commercial Bills and Promissory Notes in the Bill Market

Now in addition to the above, the following new instruments come into existence:

• Commercial Papers
• Commercial Papers
• Inter-Bank participation Certificates
• Repo Instruments

All the activities are divided groupwise or sectionwise under organising function. Now, such grouped activities are co-ordinated towards the accomplishment of objectives of a classroom. With the function of coordination the classroom must be peaceful and calm.

Correct option: (A) Financial management