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This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.

2801.

In a survey, it was observed that families having young kids spend more on toys and sweets, the families having teenagers spends more on recreation and the families having old age people have to spend more on medication or hospital expenses. Which factors influencing buyer behaviour are being reflected here? Discuss any three more factors influencing buyer behaviour.

Answer»

Personal factors reflected in the case. 

Other three factors influencing buyer behaviour: 

(a) Motivation: 

Motivation is the driving force within individuals that impels or compels them to take action. Simple stated, this driving force is produced by a state of tension which exists as the result of unfulfilled needs. 

(b)  Perceptions: 

it has been observed that two people with the same level of motivation and in the same situation act differently because of different perception. Perception is an individual process. It depends on personal beliefs, experience, needs, moods and expectations 

(c ) Occupation: 

A person‘s occupation is an important social status indicator. Marketers always keep this factor while targeting market for their products or services. 

For example – the buying pattern of professionals like lawyers, doctors, a taxi driver, a medical representatives and a teacher will not be alike.

2802.

Sameera is a manager of a large company manufacturing toys for kids. She plans her new winter collection of toys in the month of August. Then, she ensures that there is adequate workforce. She continuously monitors whether production is proceeding according to the plans. She asks the marketing department to prepare their promotional and advertising campaigns also.(a) Identify and explain the concept of management in the above para.(b) What characteristics does the above para highlight? State.

Answer»

(a) Coordination: It is the force that binds all the functions of management. It is the common thread that runs through all activities such as purchase, production, sales, finance, etc. to ensure continuity in the working of the organization. Coordination is not a separate function of management. It is the essence of management.
1. It is implicit and inherent in all functions of management
2. Top management plans for the entire organization.
3. According to these plans, the organizational structure is developed and staffed.
4. In order to ensure that these plans are executed according to plans, directing is required.
5. Any deviation between the actual and the standard performance is corrected at the stage of controlling.
(b) Coordination is a continuous process. It begins at the planning stage and continues till controlling

2803.

Surya Enterprise Ltd. manufactures toys. The production department produces more of toys than required and sales department is not able to sell the total production. What quality of management do you think the company is lacking?

Answer» Co-ordination.
2804.

Kushal Ltd. is a leading automobile company in which the various department are setting up their own objective without paying any interest to the organizational objectives.1. Which aspects of management of company is lacking? What will be impact on the organization?2. Identify the principle of management which has been over looked by the organization.3. State any two value which is neglected by the people of organization.

Answer»

1. The company is lacking ‘coordination’. Its different department like production, marketing, etc. do not coordinate this wok in absence of coordination; these will be overlapping and chaos instead of harmony and integration of activities. The company will fail to achieve its objectives.
2. Subordinate of individual interest to general interest.
3. Values -Mutual cooperation, unity of action, optimum utilization of resources.

2805.

Which principle of management envisages that each group of activities having the same objectives must have one head and one plan? Explain the principle with a suitable example.

Answer» Unity of Direction.
2806.

How do the techniques of scientific management improve the productivity of workers?

Answer»

The technique of scientific management has helped in improving the productivity of the workers in the following manners:
1. It establishes better relations between labour and management.
2. Profit is increased many times due to effective integration of right men, materials, money and method.
3. The use of standardized raw materials, equipments, machines and method produce standard article at minimum possible price.
4. It enables the management to reduce the cost of production.
5. It helps in providing better working condition and higher standard of living.

2807.

What is meant by ‘mental revolution’ according to Taylor?

Answer»

According to Taylor, mental revolution means a complete transformation in the attitude between management and workers. Both should realize that they need each other.

2808.

How do the techniques of ‘motion study’ help to improve the efficiency of workers?

Answer» By eliminating unnecessary and wasteful movements on the job.
2809.

What is the objective of standardisation?

Answer» To increase the efficiency of workers
2810.

After several years of living and working in a small town in Gujarat, Harsh wakes up one morning insisting that his name is Dhruv and that he has to report to his job in Mumbai. He does not recognise the furniture in his apartment or the clothing hanging in his closet. He is completely confused about his current life. He may be experiencing …………………………... a. Dissociative fugue b. Depersonalisation c. Generalised anxiety disorder d. Post-traumatic stress disorder

Answer»

(a) Dissociative fugue

2811.

Sita and Geeta are typists in a company having same educational qualifications. Sita is getting Rs 3000 per month and Geeta Rs 400 per month as salary for the same working hours. Which principle of management is violated in this case? Name and explain the principle.

Answer»

Principle of Equity - The principle of ‘Equity’ emphasizes kindliness and justice in the behaviour of managers towards works. According to Fayol, employees can be made to put in their best only when they are given kind, fair and just treatment

2812.

Name the concept that refers to the number of subordinates that can be effectively managed by a superior and determines the number of levels of management in the organisation. (a) Organisation structure (b) Span of management (c) Hierarchy of authority (d) Delegation of Authority

Answer»

(b) Span of management

2813.

Planning requires logical and systematic thinking rather than guess work. The feature of planning being referred to in the above statement is: (a) Planning is a continuous process (b) Planning is futuristic (c) Planning is pervasive (d) Planning is a mental exercise

Answer»

(d) Planning is a mental exercise

2814.

I lay down the charter or the constitution of the company. I define the object and powers of the company. 1. Identify who am I? 2. Also name my companion who provides rules and regulations for the internal management of the company. (Both are two documents).

Answer»

1. Memorandum of Association 

2. Articles of Association

2815.

Identify the documents in which following information about a company is found. 1. Authorized capital 2.  Rules and regulation for internal management. 3.  Date of opening and closing of subscription list.

Answer»

1. Memorandum of Associaiton 

2. Articles of Association 

3. Prospectus

2816.

What do you mean by Minimum Subscription?

Answer»

Minimum subscription is the minimum amount of shares that must be subscribed by the public. This amount is stated in the prospectus. A company can allot shares only after receiving minimum subscription.

2817.

Name the following documents. 1. The document issued by the company to the public to invite them to subscribe its share capital. 2. The document that binds a member with the company, company with members and members with members. 3. The document that contains rules for internal management of the company. 4. The document that specifies the aims of the company.5. The document issued by the public company which does not want to issue a prospectus.

Answer»

1. Prospectus 

2. Articles of Association 

3. Articles of Association 

4. Memorandum of Association 

5. Statement in lieu of Prospectus

2818.

State the difference between certificate of incorporation and certificate of commencement of business.

Answer»

Certificate of Incorporation gives legal status to the company. It is also known as birth certificate of the company. But certificate of commencement of business allows to start the operation. 

These two certificates are required by the public limited company, but in case of private limited company only certificate of Incorporation is required to start the operation.

2819.

Name the stages in the formation of a company?

Answer»

1. Promotion 

2. Incorporation 

3. Capital subscription 

4. Commencement of business

2820.

It is proposed to conduct a seminar on the topic ‘important documents in the formation of joint stock company’ in your class. You are selected as the leader of one of the groups and are directed to submit a seminar paper for the same. Suggest valuable points that should be included in the paper.

Answer»

1. Memorandum of Association 

2. Articles of Association 

3. Prospectus

2821.

What do you mean by promotion?

Answer»

The identification of business opportunities, analysis of its prospects and initiating steps to form a joint stock company is called promotion.

2822.

Arya Ltd. commences its business immediately on getting the certificate of incorporation. The registrar of companies serves a notice to them for remitting a fine of ₹500 for everyday of its operation. Is it legally enforceable? Give your suggestion.

Answer»

Yes. Public Ltd. Company can commence business only after getting the certificate of commencement of business.

2823.

Identify the documents required for commencing business for the following companies.1. Athira Pvt. Ltd. 2. Aditya Ltd.

Answer»

1. Athira Pvt. Ltd – A private company must file the following documents for commencing business 

  • Certificate of incorporation
  • Statutory declaration duly verified by one of the directors. 

2. Aditya Ltd., a public company, must file the following documents for commencing business. 

  • Certificate of incorporation 
  • Certificate of commencement of business 
  • Prospectus 
  • Statutory declaration duly verified by one of the directors.
2824.

“Promoter would be personally liable for the preliminary contracts, if they are not ratified by the company after incorporation. Analyse the statement.

Answer»

Promotion: 

Promotion is the first stage in the formation of a company. The identification of business opportunities, analysis of its prospects and initiating steps to form a joint stock company is called promotion. The person who undertakes to form a company is called promoter.

Functions of a Promoter: 

1. Identification of business opportunity: 

The first and foremost activity of a promoter is to identify a business opportunity.

2. Feasibility studies: 

After identifying a business opportunity, the promoters undertake some feasibility studies to determine the viability and profitability of the proposed activity. 

  • Technical feasibility – To determine whether the raw materials or technology is easily available 
  • Financial feasibility – To determine the total estimated cost of the project
  • Economic feasibility – To determine the I profitability of the proposed project

3. Name approval: 

After selecting the name of company the promoters submit an application to the Registrar of companies for its approval. The selected name is not the same or identical to an existing company. 

4. Fixing up signatories to the Memorandum of Association: 

Promoters have to decide about the members who will be signing the Memorandum of Association of the proposed company.

5. Appointment of professional: 

Promoters appoint merchant bankers, auditors etc. to assist them in the preparation of necessary documents. 

6. Preparation of necessary documents: 

The promoters prepare certain legal documents which are to be submitted to the Registrar of companies. 

They are

  • Memorandum of Association 
  • Articles of Association, 
  • Consent of proposed Directors 
  • Agreement, if any, with proposed managing or whole time director 
  • Statutory declaration

Position of Promoters: 

The promoter is neither an agent nor a trustee of the company. The promoter stands in the fiduciary relationship with the company. He should not make any secret profits out of the dealings. Any, such gains are to be disclosed. The promoter must act honestly, in good faith and in the best interest of the company. 

The promoter is personally liable for all the preliminary contracts with the other parties before incorporation. The promoter is also liable for any omission of facts or false statements in the prospectus.

2825.

For incorporating a private limited company, Deepthi Pvt. Ltd., the directors submit all relevant documents to the registrar of company except Articles of Association. But the registrar insists that, registration will not be granted without filing Articles of Association. But the directors of Deepthi Pvt. Ltd., argue that the provisions of ‘Table A’ can be adopted in the absence of Articles of Association. Whose argument is correct? Justify your answer.

Answer»

The argument of the Company Registrar is right because filing of Articles of association is compulsory for Pvt. Ltd company by shares.

2826.

State the odd item in the case of a private limited company. 1. memorandum of association 2. articles of association 3. certificate of incorporation 4. certificate of commencement of business

Answer»

4. Certificate of Commencement of business

2827.

Mr. Amal intends to start a computer software unit. He purchased a building for Rs. 3,00,000, for which a sum of Rs. 2,00,000 has been raised by availing a bank loan, and Rs. 75000 has been raised from his friend, Biju Mathew. Show this transaction by developing an accounting equation.

Answer»

Assets = Liabilities + Capital

TransactionsBuildingBank loan + Loan from friend + capital
3,00,0002,00,000+75,000 +2500

2828.

The details of a proposed private company having limited liability is given below. You are required to identify as to which clauses in the Memorandum of Association have to be rightly inserted.Proposed names: Mahatma Gandhi Khadi – Company Premier Mills (P) Ltd.Kerala Government Khadi Company Sobha Co-operative Company Maximum capital which can be collected is 20 lakhs rupees Nature of shares Equity shares at Rs. 10/- shareAddress: Pushpa Nivas Kodunganoor (P.O) Thiruvananthapuram 13 Kerala State India. Nature of business: To produce Khadi clothes through machine To stitch Khadi ready wears Name of the persons who are wishing to form the company P. Sudarsanan K. Muraleedharan Nair S. Renjith

Answer»

1. Name clause 

2. Capital clause 

3. Situation clause 

4. Object clause 

5. Association clause

2829.

The details of a proposed limited company are given below. You are required to identify them as to which clause of the memorandum of association they have to be inserted.1. Proposed name: Jnana Construction Company Ltd 2. Maximum Capital: ₹10,00,000 3. Registered office: Kollam 4. Nature of liability: Limited 5. Nature of Business: Construction company 6. Names of promoters: Jnana, Akshara, Pooja, Ajay

Answer»

1. Name clause 

2. Capital clause 

3. Situation / Domicile clause 

4. Liability clause 

5. Object clause 

6. Association clause

2830.

Mr. Hemand, a Gulf returnee, intends to start a business in the form of private limited company. But he lias no clear idea about the business opportunities in Kerala and the formalities to be followed in the formation of company.1. As a commerce student can you suggest a specialised person who would undertake all activities for the formation of a company? 2. Explain the functions of those specialised persons.

Answer»

Promotion: 

Promotion is the first stage in the formation of a company. The identification of business opportunities, analysis of its prospects and initiating steps to form a joint stock company is called promotion. The person who undertakes to form a company is called promoter.

Functions of a Promoter: 

1. Identification of business opportunity: 

The first and foremost activity of a promoter is to identify a business opportunity. 

2. Feasibility studies: 

After identifying a business opportunity, the promoters undertake some feasibility studies to determine the viability and profitability of the proposed activity. 

  • Technical feasibility – To determine whether the raw materials or technology is easily available 
  • Financial feasibility – To determine the total estimated cost of the project 
  • Economic feasibility – To determine the I profitability of the proposed project

3. Name approval:

After selecting the name of company the promoters submit an application to the Registrar of companies for its approval. The selected name is not the same or identical to an existing company. 

4. Fixing up signatories to the Memorandum of Association:

Promoters have to decide about the members who will be signing the Memorandum of Association of the proposed company. 

5. Appointment of professional: 

Promoters appoint merchant bankers, auditors, etc. to assist them in the preparation of necessary documents. 

6. Preparation of necessary documents: 

The promoters prepare certain legal documents which are to be submitted to the Registrar of companies. 

They are

  • Memorandum of Association 
  • Articles of Association, 
  • Consent of proposed Directors 
  • Agreement, if any, with proposed managing or whole time director 
  • Statutory declaration 

Position of Promoters: 

The promoter is neither an agent nor a trustee of the company. The promoter stands in the fiduciary relationship with the company. He should not make any secret profits out of the dealings. Any, such gains are to be disclosed. The promoter must act honestly, in good faith and in the best interest of the company. 

The promoter is personally liable for all the preliminary contracts with the other parties before incorporation. The promoter is also liable for any omission of facts or false statements in the prospectus.

2831.

Explain how management increases efficiency and helps in the development of society.

Answer»

Management directs organizational goal towards utilizing the physical and human resources provided by the society in an optimal manner. Management uses functions like planning, organizing, staffing, directing and controlling to achieve organizational goals that further leads to good quality and environment friendly products / services and improves overall standard of living of the society.

2832.

As per the manager of Angel Cosmetics, decentralisation is an optional policy. Do you agree? Explain why, why not?

Answer» Yes, decentralisation is an optional policy yet it is very important in an organisation because of the following reasons:
(i) Develops initiative among subordinates It helps to promote self-reliance and confidence amongst the subordinates. This is because, lower managerial levels have been given freedom to take their own decisions and they learn to depend on their own judgement. It also helps to identify those executives. who have the potential to become dynamic leaders.
(ii) Develops managerial talent for the future Formal training along with experience of handling independent assignments helps to create a reservoir of qualified and capable managers, who can take up more challenging positions in the upcoming ventures of the organisation,
(iii) Quick decision-making Under decentralisation, authority to make decisions is placed in the hands of those, who are responsible for executing the decisions. Since, decisions are taken at levels nearest to the point of execution, there is no delay or distortion of information.
(iv) Relief to top managenent It helps to reduce the amount of direct supervision over subordinates by giving them freedom to take decision and act on their own. This reduces the workload of top executives and they can devote their time and attention to important policy matters.
(v) Facilitates growth It provides greater autonomy to lower level managers and departmental heads. This encourages them to function more efficiently to prove their supremacy, and facilitate expansion and growth of the organisation.
2833.

Styles _____ in the 1940s have recently reappeared in high-fashion boutiques. A) have been popular B) were popular C) that were popular D) which they were universally popular

Answer»

Correct option is C) that were popular

2834.

Geeta and Aruna are the owners of PLS group. They are having a diversified business. Now, they are planning to launch a new venture. The owners are very successful as they follow planning, organising, directing and controlling in all businesses. Which characteristics of management does it signify? Explain any four characteristics of management

Answer» The characteristics of management depicted in the given case are:
(i) Management is a goal-oriented and continuous process.
(ii) Management is pervasive, intangible and a group activity.
Four characteristics of management are:
(i) Management is a continuous process: Management is an ongoing process of planning, organising, staffing, directing and controlling which brings the management cycle back to planning.
(ii) Group activity An organisation is a collection of diverse activities and different individuals. Through coordination and teamwork, management unites the efforts of individuals to achieve organisational goals, along with the fulfilment of personal goals of the individuals.
(iii) Dynamic function Every organisation interacts with its external environment. In order to survive or achieve success, an organisation must change itself and its goals according to the changes in social, economic, legal and technological environment.
(vi) Intangible force Management is an unseen force whose presence can be felt when an organisation functions. Orderliness, discipline, happy and satisfied employees, all reflect presence of good management.
2835.

Define Sales Promotion according to Mcdonald and Wilson. Name any two objectives of Sales Promotion.

Answer»

Non-face-to-face activity concerned with the promotion of sales. It involves the making of a featured offer to defined customers within a specific time limit. 

The objectives of Sales Promotion:

  • Increased trial 
  • Increased loyalty 
  • Widening usage 
  • Creating interest 
  • Creating awareness
2836.

I ____ up early last year. A) use to get B) used to getting C) used get D) used to get

Answer»

Correct option is D) used to get

2837.

Don’t touch that electric stove while it ______. A) was being repaired B) being repaired C) is being repaired D) will be repairing

Answer»

Correct option is C) is being repaired

2838.

The roof _____ before winter comes. A) requires to be repaired B) must be repairing C) has to repairing D) needs repairing

Answer»

Correct option is D) needs repairing

2839.

I got the computer ____. A) repairing B) repaired C) repairs D) to repair

Answer»

Correct option is B) repaired

2840.

What did Bhagwat Singh ji say to Geeta regarding Vijay’s engagement ? भगवत सिंह जी ने विजय की सगाई के बारे में गीता को क्या कहा ?

Answer»

Bhagwat Singh ji told Geeta that Daulat Singhji and his brother had come to urge Vijay’s engagement to their son. He was satisfied with the matching of the horoscopes. Vijay had been born under the most auspicious influence of the stars. He had viewed the proposal from every angle. But he was not still sure if a girl of young age like Vijay should be engaged. But he knew that a girl has to be married sooner or later.

भगवत सिंह जी ने गीता को बताया कि दौलत सिंह जी और उनके भाई आये थे और अपने बेटे के साथ विजय की सगाई पर बल दे रहे थे। वह जन्म पत्रियों के मिलने से सन्तुष्ट हैं। विजय गृहों के सर्वोत्तम शुभ प्रभाव में पैदा हुई है। उन्होंने इस विवाह प्रस्ताव पर प्रत्येक दृष्टिकोण से विचार कर लिया है। परन्तु वह अभी तक इस बात से सुनिश्चित नहीं है कि विजय जैसी छोटी उम्र की लड़की की सगाई करनी चाहिये या नहीं। किंतु वह यह भी जानते हैं कि लड़की की तो शादी करनी ही पड़ती है जल्दी या देर से।

2841.

How does Mr. Lamb’s brief association with Derry affect the latter? OR How did Mr. Lamb’s meeting with Derry become a turning point in his life?

Answer»

Derry was a fourteen-year-old boy who had his one side of face burnt due to the spilling of acid. He was dejected. People pitied him. He was pained due to the horror, disgust, and the pity show for him by the alienated people. As a result, he had become bitter. He had withdrawn himself from people and had developed a pessimistic attitude to life. When he met Mr. Lamb and spent some time in his company, his entire perspective changed. Mr. Lamb was a person, full of life. He told Derry to embrace life fully and not to be bothered about what people said about him. He advised him to keep his ears shut to what was unpleasant to hear but not to shut himself in. He inspired Derry by keeping himself busy in spite of his tin-leg and by being open and cheerful. Mr. Lamb’s advice proved to be a great motivation for Derry, and he came out from his shell of isolation. Thus, it proved to be a turning point in his life.

2842.

Will Derry get back to his old seclusion or will Mr. Lamb’s brief association effect a change in the kind of life he will lead in future?

Answer»

Derry had received a lot of positivity from Mr. Lamb, who encouraged him to live his life on this own terms. He had motivated him so much that he had come out of his inferiority complex. So, he would not get back to his seclusion.

2843.

Directions: Each of the next six (6) items consist of two statements, one labelled as ‘Statement (I)’ and the other as ‘Statement (II)’. You are to examine these two statements carefully and select the answers to these items using the code given below: Code: (a) Both Statement (I) and Statement (II) are individually true and Statement (II) is the correct explanation of Statement (I) (b) Both Statement (I) and Statement (II) are individually true but Statement (II) is not the correct explanation of Statement (I) (c) Statement (I) is true but Statement (II) is false (d) Statement (I) is false but Statement (II) is trueStatement (I): The size of a memory unit is specified in terms of the number of storage locations available; 1 K is 210 = 1024 locations and thus a 4 K memory has 4096 locations. Statement (II): Erasable and programmable ROM (EPROM) is a form of memory unit used for ROMs that can be programmed and their contents altered.

Answer»

(b) Both Statement (I) and Statement (II) are individually true but Statement (II) is not the correct explanation of Statement (I) 

M/M (or) memory size can’t be compared with types of memory.

2844.

Which one among the following lasers is used in cancer treatment?1. He - Ne laser2. Ruby laser3. CO2 laser4. Semiconductor laser

Answer» Correct Answer - Option 3 : CO2 laser

The correct answer is CO2 Laser

  • Carbon dioxide (CO2): CO2 lasers removes very thin layer of tissue from the surface of the skin without removing deeper layers.
    • The CO2 laser may be used to remove skin cancers and some precancerous cells.


  • Helium-neon (He–Ne) lasers are a frequently used type of continuously operating gas lasers, which is also the first demonstrated gas laser
  • Ruby laser is a solid-state laser that uses the synthetic ruby crystal as its laser medium.
    • Ruby laser is the first successful laser developed by Maiman in 1960.
    • Ruby laser is one of the few solid-state lasers that produce visible light​.
  • Semiconductor laser (LD): It is a device that causes laser oscillation by flowing an electric current to the semiconductor.
    • The mechanism of light emission is the same as a light-emitting diode (LED).
2845.

The following items consist of two statements, one labelled as assertion A) and the other as reason R). You are required to examine these two statements and select the answer:Assertion A): Biogas is a good source of energy in Rural Rajasthan.Reason R): Rajasthan has a large number of domestic animals.1. Both A and R are true and R is the correct explanation of A2. Both A and R are true and R is not the correct explanation of A3. A is true but R is false4. A is false but R is true

Answer» Correct Answer - Option 1 : Both A and R are true and R is the correct explanation of A

The correct answer is Both A and R are true and R is the correct explanation of A.

 

  • Rajasthan Bio-fuel Policy, 2016  
    • Rajasthan is one of the fastest developing states in the country and has the privileged to become the first state to develop a Bio-fuel Policy in the year 2006.
    • The key to the future of Biodiesel is exploring inexpensive feedstocks that can be grown by farmers in marginal agriculture.
    • It is also crucial that supplies of alternative, non-edible vegetable oils be ensured for sustainable production of biodiesel.
    • In this regard, Jatropha is one of many plants that hold a great deal of promise.
    • 12 districts of Rajasthan namely Baran, Banswara, Bhilwara, Bundi, Chittorgarh, Dungarpur, Jhalawar, Kota, Rajsamand, Sirohi, Udaipur & Pratapgarh are found suitable for plantation of Jatropha.
  • Rajasthan Wasteland Development Board
    • Rajasthan Wasteland Development Board was constituted in 2009 to decide the policy & strategies for the development of wasteland through soil & water conservation, Agro-forestry, Pasture development & bio-fuel activities.
    • It was constituted under the chairmanship of Hon'ble Rural Dev. & Panchayati Raj Minister. Hon'ble Agriculture, Revenue, Forest & Cooperative ministers and chief secretaries are among the members of the board.

 

  • Bio-fuel
    • Bio-fuel is a generic term that refers to fuel derived from biomass, such as plants and organic wastes.
    • Recently animal fat, the waste stream of vegetative oil, used cooking oil and agriculture residues are also being used to derive bio-fuel
2846.

Directions: Each of the next six (6) items consist of two statements, one labelled as ‘Statement (I)’ and the other as ‘Statement (II)’. You are to examine these two statements carefully and select the answers to these items using the code given below: Code: (a) Both Statement (I) and Statement (II) are individually true and Statement (II) is the correct explanation of Statement (I) (b) Both Statement (I) and Statement (II) are individually true but Statement (II) is not the correct explanation of Statement (I) (c) Statement (I) is true but Statement (II) is false (d) Statement (I) is false but Statement (II) is trueStatement (I): The greater the chemical affinity of two metals, the more restricted is their solid solubility and greater is the tendency of formation of compound. Statement (II): Wider the separation of elements in the periodic table, greater is their chemical affinity

Answer»

(a) Both Statement (I) and Statement (II) are individually true and Statement (II) is the correct explanation of Statement (I) 

The greater the chemical affinity of two metals, the more restricted will be their solubility. Wider the separation of elements in the periodic table, greater is their chemical affinity.

2847.

A cylist travelling at 10m/s applies brakes and stops in 25m m. The graph shows the magnitude of the braking force versus the distance travelled. What is the total mass of bike and cyelist?A. 20 kgB. 40kgC. 64 kgD. 80kg

Answer» Area under curve=work done
`=160xx15+(160xx10)/(2)=3200`
`(1)/(2)xxmxx10^(2)=3200rArrm=64kg`
2848.

A person sitting in a moving car experience a jerk in forward direction when the driver suddenly applies brakes. law is illustrated here ?1. Newton's third law of motion2. Newton's first law of motion3. Law of gravitation4. Newton's second law of motion

Answer» Correct Answer - Option 2 : Newton's first law of motion

The correct answer is Newton's first law of motion.

 Newton's first law of motion- Newton's first law states that, if a body is at rest or moving at a constant speed in a straight line, it will remain at rest or keep moving in a straight line at constant speed unless it is acted upon by a force.

  • The first law explains why you go flying over the handlebars if your bike stops suddenly.
  • Newton's first law is often referred to as the law of inertia – inertia is an object's tendency to resist changes in motion.
  • A stationary object with no outside force will not move. 
2849.

A car travelling at 40 km/h stops in a distance of 10m when brakes are applied. If the car was travelling at 80 km/h. What would be the stopping distance.

Answer»

u1 = 40 km/h

s1 = 10 m

u2 = 80 km/h

s2 = ?

Stopiing distance s = u2/2a

\(\frac{s_2}{s_1}=(\frac{u_2}{u_1})^2\) 

s2 = s1\((\frac{u_2}{u_1})^2\)

 = 10 \((\frac{80}{40})^2\)

s2 = 40 M

2850.

While performing experiments with water, Jyoti observed that an empty steel bowl floats but a small iron nail sinks in water. This can be explained by the fact that1. force on a steel bowl is more than its weight whereas force on an iron nail is lesser than its weight2. force on an iron nail is more than its weight whereas force on a steel bowl is lesser than its weight3. iron is heavier than water and steel is lighter that water4. iron is lighter than water and steel is heavier than water

Answer» Correct Answer - Option 1 : force on a steel bowl is more than its weight whereas force on an iron nail is lesser than its weight

Iron nail sank in water but the steel bowl floated. This happened because:

  • Iron nail could displace less amount of water than what was displaced by the steel bowl.
  • Also, the force on a steel bowl is more than its weight whereas force on an iron nail is lesser than its weight.
  • This is in accordance with Archimedes Principle.

Archimedes Principle: According to this principle ''The upward buoyant force that is exerted on a body immersed in a fluid, whether partially or fully submerged, is equal to the weight of the fluid that the body displaces and acts in the upward direction at the centre of mass of the displaced fluid''

Archimedes Principle Applications:

  • Submarine
  • Hot-air balloon
  • Hydrometer