Search Previous Year Questions

The correct answer is 'ephemeral'.

Key Points

• In quantum computing, a major challenge is the short-lived nature of qubit states, i.e., their ephemeral coherence.
• “Ephemeral” means short-lived or lasting for a very brief time, which matches the context of qubits losing coherence quickly.
• Other options like “permanent” or “perennial” suggest long-lasting stability, which is the opposite of the actual problem.
• Thus, “ephemeral” correctly highlights the difficulty of maintaining qubit coherence for useful computations.

Therefore, the correct answer is 'Option 2'.

Complete Passage: Researchers in quantum computing face the twin difficulties of ephemeral qubit coherence and (2) _____ error rates. While superconducting qubits have shown promise, maintaining coherence beyond microseconds remains (3) _______ due to environmental decoherence. Furthermore, scaling up the number of qubits requires (4) ________ control electronics that themselves introduce noise. To overcome these hurdles, teams are exploring (5) ________ techniques such as surface codes and topological qubits.

Additional Information

• To durable: Grammatically incorrect phrase and contextually irrelevant.
• Ephemeral: Correct; means short-lived, aligning with fragile qubit coherence.
• Permanent: Opposite of the issue, as qubit coherence is not long-lasting.
• Perennial: Means enduring or lasting indefinitely; again, opposite of the problem described.

The correct answer is 'prohibitive'.

Key Points

• Quantum computers currently suffer from very high error rates, which make large-scale computations extremely difficult.
• The adjective “prohibitive” means so large or excessive that it prevents progress — fitting the challenge of error correction in quantum systems.
• “Negligible” or “low” would imply the errors are insignificant, which contradicts the reality described in the passage.
• “Cheap” is irrelevant here, as cost is not being discussed — the focus is on error rates in qubits.

Therefore, the correct answer is 'Option 2'.

Complete Passage: Researchers in quantum computing face the twin difficulties of (1) _______ qubit coherence and prohibitive error rates. While superconducting qubits have shown promise, maintaining coherence beyond microseconds remains (3) _______ due to environmental decoherence. Furthermore, scaling up the number of qubits requires (4) ________ control electronics that themselves introduce noise. To overcome these hurdles, teams are exploring (5) ________ techniques such as surface codes and topological qubits.

Additional Information

• Negligible: Too small to matter; opposite of the actual high error rates in quantum systems.
• Prohibitive: Correct; denotes extremely high error rates that hinder progress.
• Cheap: Irrelevant, since the passage discusses error magnitude, not cost.
• Low: Incorrect, as error rates are not low but instead a major barrier in quantum computing.

The correct answer is 'elusive'.

Key Points

• Maintaining qubit coherence beyond microseconds is extremely difficult due to environmental decoherence.
• The word “elusive” means hard to achieve or difficult to grasp, which perfectly fits the context.
• “Tractable” means manageable or easy to deal with — the opposite of what the passage conveys.
• “Innate” means inborn or natural, which does not relate to maintaining coherence.
• “Redundant” means unnecessary or superfluous, also irrelevant here.

Therefore, the correct answer is 'Option 2'.

Complete Passage: Researchers in quantum computing face the twin difficulties of (1) _______ qubit coherence and (2) _____ error rates. While superconducting qubits have shown promise, maintaining coherence beyond microseconds remains elusive due to environmental decoherence. Furthermore, scaling up the number of qubits requires (4) ________ control electronics that themselves introduce noise. To overcome these hurdles, teams are exploring (5) ________ techniques such as surface codes and topological qubits.

Additional Information

• Tractable: Means easily manageable — opposite of the actual challenge described.
• Elusive: Correct; signifies something difficult to maintain or achieve.
• Innate: Means natural or inherent; unrelated to coherence maintenance.
• Redundant: Means unnecessary or repetitive; does not fit the context.

The correct answer is 'sophisticated'.

Key Points

• Scaling up qubits requires very advanced and precise control systems to handle delicate quantum states.
• The word “sophisticated” means complex, advanced, and highly developed — exactly what is needed in quantum control electronics.
• “Austere” means strict or simple, which does not describe advanced electronics.
• “Rudimentary” means basic or primitive, opposite of the advanced systems required here.
• “Obsolete” means outdated or no longer in use, which clearly doesn’t fit the passage about cutting-edge technology.

Therefore, the correct answer is 'Option 2'.

Complete Passage: Researchers in quantum computing face the twin difficulties of (1) _______ qubit coherence and (2) _____ error rates. While superconducting qubits have shown promise, maintaining coherence beyond microseconds remains (3) _______ due to environmental decoherence. Furthermore, scaling up the number of qubits requires sophisticated control electronics that themselves introduce noise. To overcome these hurdles, teams are exploring (5) ________ techniques such as surface codes and topological qubits.

Additional Information

• Austere: Means plain or simple; unsuitable for describing complex electronics.
• Sophisticated: Correct; refers to advanced, complex, and refined technology.
• Rudimentary: Too basic, opposite of the advanced systems needed.
• Obsolete: Outdated, irrelevant to the cutting-edge field of quantum research.

The correct answer is 'quantum-error-correcting'.

Key Points

• The passage discusses overcoming noise and decoherence problems in quantum computing.
• Surface codes and topological qubits are examples of quantum error-correcting techniques, designed to stabilize fragile qubit states.
• Thus, the correct word to fill the blank is quantum-error-correcting, as it directly matches the context.
• Other options like “fallacious,” “presumptive,” and “monochromatic” are irrelevant to the field of quantum computing.

Therefore, the correct answer is 'Option 2'.

Complete Passage: Researchers in quantum computing face the twin difficulties of (1) _______ qubit coherence and (2) _____ error rates. While superconducting qubits have shown promise, maintaining coherence beyond microseconds remains (3) _______ due to environmental decoherence. Furthermore, scaling up the number of qubits requires (4) ________ control electronics that themselves introduce noise. To overcome these hurdles, teams are exploring quantum-error-correcting techniques such as surface codes and topological qubits.

Additional Information

• Fallacious: Means misleading or false; irrelevant to quantum error correction.
• Quantum-error-correcting: Correct; directly relates to surface codes and topological qubits.
• Presumptive: Means based on assumption; does not fit here.
• Monochromatic: Refers to a single color or wavelength; unrelated to error-correction methods.

The correct answer is: Stoic.

Key Points

• The word "Stoic" refers to a person who is indifferent to pleasure or pain, showing self-control and resilience in the face of adversity. (संवेदनहीन/सहिष्णु)
• Example: Despite losing everything in the fire, he remained stoic and focused on rebuilding his life.
• "Indifferent to pleasure or pain" means having an attitude where emotional highs and lows do not significantly affect the person. (आनंद और दर्द के प्रति उदासीन)
• Example: She was stoic during the funeral, offering comfort to others while hiding her own grief.
• Hence, the word that best fits the description is "Stoic."

Therefore, the correct answer is: Stoic.

Additional Information

Here are the other options explained along with their Hindi meanings and example sentences:

• Epicure (भोगवादी): A person who takes particular pleasure in fine food and drink.
• Example: The epicure spent hours choosing the perfect wine to complement his dinner.
• Pessimist (निराशावादी): A person who tends to see the worst aspect of things or believe that the worst will happen.
• Example: The pessimist was convinced that the project would fail, despite everyone's efforts.
• Masochist (स्वयं कष्ट उठाने वाला): A person who derives pleasure from their own pain or humiliation.
• Example: The masochist found satisfaction in enduring challenges that others avoided.

Q1: Choose the correct one-word substitution for: "A person who is indifferent to pleasure or pain."

The correct answer is: Stoic.

The correct answer is: Option 4 i.e. Gregarious.

Key Points

• The word "Gregarious" means fond of company; sociable. (मिलनसार)
• Example: She is a gregarious person who loves hosting parties and meeting new people.
• "Gregarious" refers to a person who enjoys interacting with others and thrives in social settings. (मिलनसार)
• Example: The gregarious child made friends quickly at the playground.

Therefore, the correct answer is: Option 4.

Additional Information

Here are the other options explained along with their Hindi meanings:

• Gregareous (गलत वर्तनी): This is an incorrect spelling of the word "Gregarious."
• Note: There is no meaning associated with this incorrect spelling.
• Gregerious (गलत वर्तनी): This is an incorrect spelling of the word "Gregarious."
• Note: There is no meaning associated with this incorrect spelling.
• Grigarious (गलत वर्तनी): This is an incorrect spelling of the word "Gregarious."
• Note: There is no meaning associated with this incorrect spelling.

Q: Select the correct spelling of a word meaning 'fond of company; sociable.' Correct Answer: Option 4 i.e. Gregarious

The correct answer is: Option 1 (Falsehood).

Key Points

• The word "veracity" means the quality of being truthful, honest, or accurate. It refers to adherence to facts or truth. (सत्यता, सच्चाई)
• Example: The witness’s veracity was questioned during the trial.
• "Falsehood" is the complete opposite of veracity. It refers to the state of being untrue or a lie. (असत्य, झूठ)
• Example: The politician was accused of spreading falsehoods during his campaign.
• Hence, the antonym of 'veracity' is 'falsehood'.

Therefore, the correct answer is: Option 1 (Falsehood).

Additional Information

Here are the other options explained along with their Hindi meanings and example sentences:

• Accuracy (सटीकता): The quality of being correct or precise.
• Example: The accuracy of his calculations impressed everyone.
• Truthfulness (सत्यनिष्ठा): The quality of being honest and truthful.
• Example: Her truthfulness in every situation earned her great respect.
• Honesty (ईमानदारी): The quality of being honest, sincere, and free of deceit.
• Example: His honesty is the reason why he is so trusted by his colleagues.

Question: Choose the antonym of 'veracity':

Correct Answer: Option 1 (Falsehood)

The correct answer is Option 2.

Key Points

• The phrase "an hour" is correct because "hour" begins with a vowel sound, and the article "an" is used before words that start with a vowel sound.
• The article "a" is used before words that begin with a consonant sound, but "hour" starts with a silent "h," making the first sound a vowel sound.
• The other options ("a," "the," "many") do not fit grammatically or contextually in this sentence.

Therefore, the correct answer is Option 2.

Correct Sentence: "There is an hour left for you to get ready."

Additional Information

• A: "a" – This is incorrect because "hour" starts with a vowel sound, so "an" is required.
• C: "the" – This is incorrect because "the" is used to refer to something specific, which is not the case here.
• D: "many" – This is incorrect because "many" is not an article and does not fit the context.
• No error – This would be the correct option if the sentence were already correct, but the blank requires "an" to be grammatically correct.

The correct answer is Option 2.

Key Points

• The word quickly is an adverb, but the sentence requires an adjective to describe the noun "decision."
• Adverbs modify verbs, adjectives, or other adverbs, whereas adjectives modify nouns.
• The correct word should be quick, which is an adjective that fits the context.
• Thus, quickly doesn't fit the required part of speech in the sentence.

Therefore, the correct answer is Option 2.

Correct Sentence: "She made a quick decision without thinking."

Additional Information

• Decision: This is a noun and is used correctly in the sentence.
• Made: This is a verb and correctly indicates the action performed.
• Thinking: This is a gerund (verb functioning as a noun) and fits well in the context.
• Quickly: This is the incorrect word choice as it is an adverb instead of the required adjective.