GATE PH branch:ph PYQs & Answers — Page 21

Questions 201–210 of 650. Imported answers require independent review unless marked reviewed.

Human beings are one among many creatures that inhabit an imagined world. In this imagined world, some creatures are cruel. If in this imagined world, it is given that the statement “Some human beings are not cruel creatures” is FALSE, then which of the following set of statement(s) can be logically inferred with certainty?

(i) All human beings are cruel creatures. (ii) Some human beings are cruel creatures. (iii) Some creatures that are cruel are human beings. (iv) No human beings are cruel creatures.

Your answerChoose one option.

only (i)

only (ii) and (iv)

only (i) and (ii)

(i), (ii) and (iii)

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To construct a wall, sand and cement are mixed in the ratio of 3:1. The cost of sand and that of cement are in the ratio of 1:2.

If the total cost of sand and cement to construct the wall is 1000 rupees, then what is the cost (in rupees) of cement used?

Your answerChoose one option.

400

600

800

200

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The World Bank has declared that it does not plan to offer new financing to Sri Lanka, which is battling its worst economic crisis in decades, until the country has an adequate macroeconomic policy framework in place. In a statement, the World Bank said Sri Lanka needed to adopt structural reforms that focus on economic stabilisation and tackle the root causes of its crisis. The latter has starved it of foreign exchange and led to shortages of food, fuel, and medicines. The bank is repurposing resources under existing loans to help alleviate shortages of essential items such as medicine, cooking gas, fertiliser, meals for children, and cash for vulnerable households.

Based only on the above page, which one of the following statements can be inferred with certainty?

Your answerChoose one option.

According to the World Bank, the root cause of Sri Lanka’s economic crisis is that it does not have enough foreign exchange.

The World Bank has stated that it will advise the Sri Lankan government about how to tackle the root causes of its economic crisis.

According to the World Bank, Sri Lanka does not have an adequate macroeconomic policy framework.

The World Bank has stated that it will provide Sri Lanka with additional funds for essentials such as food, fuel, and medicines.

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The coefficient of

in the polynomial

is equal to ______.

Your answerChoose one option.

− 3

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Which one of the following shapes can be used to tile (completely cover by repeating) a flat plane, extending to infinity in all directions, without leaving any empty spaces in between them? The copies of the shape used to tile are identical and are not allowed to overlap.

Your answerChoose one option.

circle

regular octagon

regular pentagon

rhombus

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Which one of the following entropy (S) - temperature (T) diagrams CORRECTLY represents the Carnot cycle

shown in the

diagram?

Your answerChoose one option.

Diagram for Physics question 11 (figure 2)

Diagram for Physics question 11 (figure 3)

Diagram for Physics question 11 (figure 4)

Diagram for Physics question 11 (figure 5)

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Which one of the following is a dimensionless constant?

Your answerChoose one option.

Permittivity of free space

Permeability of free space

Bohr magneton

Fine structure constant

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Choose the most appropriate matching of the items in Column 1 with those in Column 2.

Column 1	Column 2
(i) PIN diode	P. Voltage regulation
(ii) Tunnel diode	Q. Radio frequency and microwave devices
(iii) Zener diode	R. Optoelectronic detection
(iv) Photo diode	S. Oscillator

Your answerChoose one option.

(i) - Q; (ii) - S; (iii) - P; (iv) - R

(i) - R; (ii) - Q; (iii) - P; (iv) - S

(i) - R; (ii) - S; (iii) - P; (iv) - Q

(i) - P; (ii) - Q; (iii) - R; (iv) - S

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The atomic number of an atom is 6. What is the spectroscopic notation of its ground state, according to Hund’s rules?

Your answerChoose one option.

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is the Hamiltonian,

the orbital angular momentum and

is the z-component of

. The

state of the hydrogen atom in the non-relativistic formalism is an eigen function of which one of the following sets of operators?

Your answerChoose one option.

and

only

and

only

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GATE PH branch:ph PYQs

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