Biography of Albert Einstein

The nickname mentioned in the account is ‘Brother Boring’, so option B is correct. It reflects how some people viewed Einstein’s quiet, solitary and apparently unexciting manner during childhood. The name should be understood as a social description, not as a judgment of his eventual intelligence or achievements. ‘Little Scientist’ and ‘King of Maths’ sound connected with his later reputation, but they are not the nickname given in the lesson. ‘Young Professor’ is also an invented distractor and does not belong to the childhood episode. Remembering the nickname alongside his late speech and preference for solitary play helps connect the separate details into a coherent picture of his early years.

Einstein preferred to play alone during childhood, so option C is correct. This preference agrees with the chapter’s description of him as quiet, solitary and inward-looking. Solitary play does not necessarily mean that a child is unhappy or unable to make friends; in Einstein’s case, it suggests that he was comfortable observing, thinking and exploring ideas by himself. Option A presents the opposite social pattern, while B and D add locations or activities that are not stated in the biography. The question tests a textual detail, so the answer should be based on the described habit rather than on assumptions about how all children usually play. His independent childhood nature later appeared in his willingness to think differently.

Einstein especially loved the violin, making option D correct. Music was not an unrelated hobby in his life: he learned and played the violin, and it gave him pleasure as well as a form of creative expression. The chapter uses this interest to show that a great scientist can also value art and musical feeling. Tabla, dholak and flute are genuine instruments, but the biography does not identify any of them as Einstein’s special instrument. Thus the distractors are plausible only because they are musical instruments; they do not match the specific fact asked by the question. The important connection to remember is Einstein, music and violin.

Einstein’s mother encouraged him to learn the violin, so option A is correct. This detail connects his family life with his lasting love of music. The question asks who encouraged him, not who taught him every musical skill or who supported his scientific education. The biography specifically associates the encouragement to begin violin lessons with his mother. The father, a friend and a principal may sound like reasonable people in a child’s life, but none is identified as the person responsible in this account. Remembering the pair ‘mother and violin’ is therefore more accurate than making a general guess about family or school influence. His musical interest later remained an important part of his personality.

The correct answer is B, Compass. When Einstein was a child, his father showed him a compass. Einstein noticed that its needle moved and consistently pointed in one direction even though no visible force seemed to be pushing it. This simple experience made him wonder about invisible forces operating in nature and encouraged his habit of asking scientific questions. A telescope, radio, or watch may also attract a child’s attention, but none of them is the object described in the lesson. The important connection is: compass, unseen force, and the beginning of Einstein’s intense curiosity about the natural world.

The correct answer is C, curiosity. When Einstein saw the compass needle moving in a definite direction, he could not see the force responsible for its movement. This visible effect produced a question in his mind: how could an unseen force make the needle behave in that way? Instead of ignoring the event, he wanted to understand the hidden law of nature behind it. This is the governing idea of scientific curiosity—careful observation creates questions, and questions encourage investigation. Pride, fear, and laziness do not explain his response in the lesson. The compass therefore became an early symbol of Einstein’s desire to explore invisible forces and understand how the natural world works.

The correct answer is D, rote learning. Rote learning requires students to memorise information mechanically and reproduce it, often without understanding its meaning or asking whether it is reasonable. Einstein’s mind worked differently: he preferred to examine ideas, ask questions, and discover the principles behind facts. Learning with understanding, doing experiments, and asking questions are all forms of active learning and are compatible with scientific thinking, so options A, B, and C are not correct. The important contrast is between meaningful education and rigid memorisation. The chapter shows that Einstein resisted an educational system that valued obedience and repetition more than curiosity, reasoning, and independent thought.

The correct answer is A, strict discipline. Einstein found the Munich school’s rigid rules and authoritarian atmosphere troubling because they left little room for independent thought, questioning, or personal freedom. The problem was not the number of holidays, the presence of friends, or the colour of the room; those details do not explain his dissatisfaction in the chapter. The governing concept is the conflict between a curious, independent learner and an inflexible educational system. Remembering “Munich school” together with “strict discipline” helps distinguish this event from the later stages of Einstein’s education and career.

The correct answer is B, Mathematics and Physics. These subjects matched Einstein’s strong interest in patterns, logic, measurement, motion, and the laws governing the physical world. His later achievements in theoretical physics grew from this combination of mathematical reasoning and scientific investigation. The other pairs may be useful areas of study, but they are not the special subjects identified in the biography. The governing concept is subject–person alignment: Einstein’s intellectual development was rooted in mathematics as a language of reasoning and physics as the study of nature. Thus option B is the only answer supported by the chapter.

The correct answer is C, Zurich. Einstein went to Zurich for higher studies and joined the Polytechnic there, where he continued his scientific education. The distinction among the cities is important: Munich was associated with his earlier schooling, while Bern became significant later because he worked at the Swiss Patent Office there. Berlin was another important city in his life, but it was not the city named for this stage of higher education. The governing idea is chronological identification—Zurich belongs to his student years, whereas Bern belongs to his employment after graduation. Therefore option C is the precise answer.

The correct answer is D, Polytechnic. In Zurich, Einstein studied at the Polytechnic, the institution associated in the lesson with his higher education and scientific training. The question asks for the type or name of the institute, not for another city or a later workplace. Oxford College, Harvard School, and Delhi College are not the institutions identified in this account of his life. The governing reading skill is matching a specific place with the correct educational institution: Zurich goes with the Polytechnic. Remembering this pairing also helps connect the next biographical detail, his meeting with Mileva Marić, who was his classmate there.

The correct answer is A, Mileva Marić. She studied with Einstein at the Zurich Polytechnic and became an important person in his personal life; they later married. Marie Curie was a distinguished scientist, but she was not Einstein’s classmate at that institute. Helen Keller and Anne Frank belong to different historical contexts and have no connection with this educational episode. The governing concept is identifying a person through a biographical relationship: Zurich Polytechnic is linked with Mileva Marić as Einstein’s classmate. The name may be written as Mileva Maric when the accent is omitted, but it refers to the same person.

The correct answer is B, husband and wife. Mileva Marić and Einstein first knew each other as students and classmates at the Zurich Polytechnic. Their relationship later developed into marriage, making them husband and wife. The other options describe relationships that are not presented in the biography: Mileva was not Einstein’s sister, teacher, lawyer, or client. The governing concept is following a relationship across time—from classmates to spouses. This detail is part of Einstein’s personal life rather than his scientific work, so it should be remembered separately from facts about his education, patent-office employment, and scientific discoveries.

The correct answer is C, examining patents. Einstein worked at the Swiss Patent Office in Bern, where he reviewed applications for inventions and assessed their technical ideas. This employment gave him a regular occupation while he continued thinking deeply about scientific problems in his own time. Writing stories, training soldiers, and painting pictures are unrelated to the work described in the chapter. The governing concept is distinguishing a patent examiner’s role from that of an inventor: Einstein evaluated technical proposals submitted by others rather than performing any of the activities in the other options. Remember the useful pair: Bern and Swiss Patent Office, with patent examination as his work.

The correct answer is Bern. Albert Einstein worked as a technical examiner at the Swiss Patent Office in Bern, Switzerland, before his academic career became famous. This detail belongs to his biography because the patent-office job supported him while he continued thinking about important scientific questions. Ulm was his birthplace, Munich was connected with his early childhood, and Zurich was associated with his education and later academic life. Therefore, those cities are plausible biographical distractors, but they do not answer the specific question about the Swiss Patent Office. Remember the useful pair: Einstein and the patent office at Bern.

The correct answer is B, E = mc². This equation expresses mass–energy equivalence: energy E is related to mass m, and c represents the speed of light in a vacuum. Because the speed of light is squared, even a small amount of mass corresponds to a very large amount of energy. The other formulas are genuine scientific relations, but they belong to different contexts. F = ma is Newton’s second law of motion, V = IR is Ohm’s law, and A = πr² gives the area of a circle. Their authenticity makes them plausible distractors, yet none is identified with Einstein in this question. Hence option B is the only correct choice.

The correct answer is C, energy. In the equation E = mc², the capital letter E denotes energy, m denotes mass, and c denotes the speed of light in a vacuum. The equation is meaningful only when each symbol is read according to its scientific definition. Distance is often represented by d, time by t, and force by F in elementary physics, although symbols can vary in specialised contexts. In this particular equation, however, E has the established meaning energy. The other options name physical quantities but do not match the notation used here. Therefore option C is correct, and recognising the symbols also helps students understand the mass–energy relationship rather than memorising the equation as an unexplained string.

The correct answer is D, mass. In Einstein’s equation E = mc², m represents mass, E represents energy, and c represents the speed of light in a vacuum. The equation connects the amount of matter in an object with an equivalent amount of energy. Speed cannot be the meaning of m because the relevant speed is represented by c; energy is represented by E, and light is not the quantity denoted by m. Thus option D is the only scientifically appropriate answer. Careful reading of notation is important here: a symbol is defined by the equation and its scientific convention, not simply by guessing from the first letter of an unrelated word. Understanding these symbols makes the equation more meaningful.

Einstein received the Nobel Prize in Physics in 1921, so option B is correct. The award recognized his explanation of the law of the photoelectric effect, an important contribution to modern physics. The question asks for the year, not the year in which he developed every part of the theory of relativity or the year in which he moved to another country. The other years may appear plausible because they fall within his lifetime and the period of major scientific change, but they are not the award year. A reliable memory link is: Einstein, Nobel Prize in Physics, 1921, photoelectric effect.

The correct answer is Physics. Albert Einstein received the 1921 Nobel Prize in Physics for his explanation of the law of the photoelectric effect. This point is important because many people associate him most strongly with relativity, but the Nobel citation was connected specifically with the photoelectric effect. Literature, Peace, and Chemistry are separate Nobel fields and are therefore plausible distractors, yet none describes the award he actually received. The governing biographical fact is precise: Einstein’s Nobel category was Physics, and the recognized work concerned the interaction of light and matter in the photoelectric effect.

The correct answer is America, more precisely the United States. Einstein left Germany after the rise of the Nazi regime and eventually settled in the United States, where he continued his scientific and public work. This biographical movement is also connected with his growing concern about dictatorship, war, and the safety of humanity. India, Japan, and Australia were not the country in which he made his permanent later home, so they function as clear distractors. The answer should not be confused with Switzerland, where he had earlier studied and worked. Thus option A accurately identifies his later residence after leaving Germany.

The correct answer is Princeton. After settling in the United States, Einstein became associated with the Institute for Advanced Study at Princeton, New Jersey, where he continued his intellectual and scientific work. The question uses a place-name clue from the later part of his biography rather than asking for a general American city. New York Theatre, Los Angeles Stadium, and Boston Harbour are invented or unrelated locations and have no meaningful connection with this biographical detail. Therefore option B is unambiguous. Remembering Princeton helps connect Einstein’s American years with the institution where he spent the later part of his career.

The governing concept is identifying the central personality of a biographical lesson from its title. A Truly Beautiful Mind is the Class 9 prose chapter about Albert Einstein. It describes his childhood, unusual curiosity, development as a thinker, scientific achievements, love of music, and concern for peace and humanity. Hence option B, Albert Einstein, is correct. Mahatma Gandhi is a major historical figure but is not the person presented in this chapter. Bismillah Khan and Evelyn Glennie are associated with The Sound of Music, so they are plausible only if chapter titles are confused. Linking the title directly with its main subject prevents that mistake.

The governing concept is the implied meaning of a title rather than its literal appearance. In A Truly Beautiful Mind, beautiful does not refer to Einstein’s face, clothes, or athletic ability. It refers to the admirable qualities of his mind and character. Einstein possessed exceptional intelligence and scientific imagination, but the title also praises his concern for peace, humanity, and social responsibility. Therefore, option C, intelligence and humanity, is correct. Options A and B focus on physical appearance, while D limits excellence to sports. The title becomes meaningful when intellectual brilliance is understood together with compassion and moral concern.

The governing life lesson is that meaningful achievement grows from curiosity, persistence, independent thinking, and sustained effort. Einstein’s story shows that a learner should question ideas, try to understand how things work, and continue developing despite early misunderstanding or judgment by others. Thus option D is correct: one can progress through curiosity and hard work. Marks may measure some academic performance, but they are not everything. Asking questions is a strength in learning, not a mistake, and strictness by itself cannot create success. The answer captures the positive educational message of his biography.