Marriage

A social phenomenon which establishes a kind of relation between male and female according to the social norms and values is known as marriage. This note provide us detailed information about marriage and its types.

Summary

A social phenomenon which establishes a kind of relation between male and female according to the social norms and values is known as marriage. This note provide us detailed information about marriage and its types.

Things to Remember

  • A social phenomenon which establishes a kind of relation between male and female according to the social norms and values is known as marriage.
  • But mainly three types of marriage are popular in our society: arrange marriage, love marriage and court marriage.
  • According to recent law of Nepal, male should be of 20 years and female should be of 18 years and requires their parents permission to get married.
  • Monogamy is the process of being married only with one woman or man.
  • Polygamy is a type of marriage in which one man is married to two or more than two women in the same time.

MCQs

No MCQs found.

Subjective Questions

Q1:

Convert into seconds:

27o 38' 42"


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Soln: <br>Here, 27<sup>o</sup> = 27&times; 60' = 1620'</p> <p>27<sup>o</sup>38' = (1620 + 38)' = 1658'</p> <p>Then, 1658' = (1658 &times; 60)" = 99480"</p> <p>&there4; 27<sup>o</sup>38'42" = (99480 + 42)" = 99522". Ans.</p>

Q2:

Convert into seconds:

60o


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Soln:</p> <p>Here, 60<sup>o</sup> = 60&times; 60' = 600'</p> <p> 3600' = (3600&times; 60") = 216000"</p> <p>&there4; 60<sup>o</sup> = 216000" Ans.</p>

Q3:

Convert into degrees:

20o 10' 12"


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Soln:</p> <p>Here, 10" =(\(\frac{12}{60}\))</p> <p> 10' 12" =(10 +\(\frac{12}{60}\))' = (10 + 0.2)' = 10.2'</p> <p> 10.2' =(\(\frac{10.2}{60}\))<sup>o</sup> = (\()\frac{102}{600}\)<sup>o</sup> = 0.17<sup>o</sup></p> <p>&there4; 20<sup>o</sup> 10' 12" = (20 + 0.17)<sup>o</sup> = 20.17<sup>o</sup> . Ans.</p>

Q4:

Convert in degrees:

20o 10' 10"


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Soln:</p> <p>Here, 10" = (\(\frac{10}{60}\))' = (\(\frac{1}{6}\))'</p> <p> 10' 10" = (10 + \(\frac{1}{60}\)) =(\(\frac{60 + 1}{6}\))' =\(\frac{61'}{6}\)</p> <p> \(\frac{61'}{6}\) =(\(\frac{61}{6}\)&times; \(\frac{1}{60}\))<sup>o</sup> =(\(\frac{61}{360}\))<sup>o</sup> = 0.1694<sup>o</sup></p> <p>&there4; 20<sup>o</sup> 10' 10" = (20 + 0.1694)<sup>o</sup> = 20.1694<sup>o</sup>. Ans.</p>

Q5:

Convert into degrees:

57o 13' 43"


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Soln:</p> <p>Here, 43" =(\(\frac{43}{6}\))'</p> <p>13'43" =(13 + \(\frac{43}{60}\))' =(\(\frac{823}{60}\))'</p> <p>(\(\frac{823}{60}\))' =(\(\frac{823}{60}\)&times;\(\frac{1}{60}\))<sup>o</sup> = 0.2286<sup>o</sup></p> <p>&there4; 57<sup>o</sup> 13' 43" = ( 57 + 0.2286)<sup>o</sup> = 57.2286<sup>o</sup> Ans.</p>

Q6:

Convert into degrees:

60o 15' 30"


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Soln:</p> <p>Here, 30" =(\(\frac{30}{60}\))' =(\(\frac{1}{2}\))'</p> <p>15'30" = (15 + \(\frac{1}{2}\))' =(\(\frac{31}{2}\))'</p> <p>(\(\frac{31}{2}\))' =(\(\frac{31}{2}\)&times;\(\frac{1}{60}\))<sup>o</sup> = 0.2583<sup>o</sup></p> <p>&there4; 60<sup>o</sup> 15' 30" = ( 60 + 0.2583)<sup>o</sup> = 60.2583<sup>o</sup> Ans.</p>

Q7:

Convert into grades:

6g 14' 25"


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Soln:</p> <p>Here, 25" = (\(\frac{25}{100}\))' =(\(\frac{1}{4}\))'</p> <p>14' 25" = ( 14 + \(\frac{1}{4}\))' =(\(\frac{57}{4}\))'</p> <p>(\(\frac{57}{4}\))' =(\(\frac{57}{4}\) &times; \(\frac{1}{100}\))<sup>g</sup> =(\(\frac{57}{400}\))<sup>g</sup> = 0.1425<sup>g</sup></p> <p>&there4; 6<sup>g</sup> 14' 25" = 6 + 0.1425<sup>g</sup> = 6.1425<sup>g</sup> Ans.</p>

Q8:

Convert into grades:

80g 2' 85"


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Soln:</p> <p>Here, 85" = (\(\frac{85}{100}\))' = (\(\frac{17}{20}\))'</p> <p>2'85" = ( 2 + \(\frac{17}{20}\))' = (\(\frac{57}{20}\))'</p> <p>(\(\frac{57}{20}\))' =(\(\frac{57}{20}\)&times;\(\frac{1}{100}\))<sup>g</sup> =(\(\frac{57}{2000}\))<sup>g</sup> = 0.0285<sup>g</sup></p> <p>&there4; 80<sup>g</sup> 2' 85" = ( 80 + 0.0285)<sup>g</sup> = 80.0285<sup>g</sup>. Ans.</p>

Q9:

Convert into grades:

75g 5' 90"


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Soln:</p> <p>Here, 90" = (\(\frac{90}{100}\))' = (\(\frac{9}{10}\))'</p> <p> 5' 90" = ( 5 + \(\frac{9}{10}\))' = (\(\frac{59}{10}\))'</p> <p> (\(\frac{59}{10}\))' =(\(\frac{59}{10}\)&times;\(\frac{1}{100}\))<sup>g</sup> = 0.059<sup>g</sup></p> <p>&there4;75<sup>g</sup> 5' 90" = (75 + 0.059)<sup>g</sup> = 75.059<sup>g</sup>. Ans.</p>

Q10:

Convert into grades:

65g 70"


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Soln:</p> <p>Here, 70" = (\(\frac{70}{100}\))' =(\(\frac{7}{10}\))'</p> <p> (\(\frac{7}{10}\))' =(\(\frac{7}{10}\)&times;\(\frac{1}{100}\))<sup>g</sup> = (\(\frac{7}{1000}\))<sup>g</sup> = 0.007<sup>g</sup></p> <p>&there4; 65<sup>g</sup> 70" = ( 65 + 0.007)<sup>g</sup> = 65.007<sup>g</sup> Ans.</p>

Q11:

Convert into sexagesimal system:

25g 26' 23"


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Soln:</p> <p>Here, 25<sup>g</sup> 26' 23" = 25.2623<sup>g</sup> [ 25 +\(\frac{26}{100}\) + \(\frac{23}{10000}\) = 25+0.26+0.0023]</p> <p>Changing into grade</p> <p>25.2623<sup>g</sup> =(25.2623&times; \(\frac{9}{10}\))<sup>o</sup></p> <p> = 22.73607<sup>o</sup> = 22<sup>o</sup> 44' 9.85". Ans.</p>

Q12:

Convert into sexagesimal:

30g 29' 19.75"


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Soln:</p> <p>Here,30<sup>g</sup> 29' 19.75" = 30.291975<sup>g</sup> [ 30 + \(\frac{29}{100}\) + \(\frac{19.75}{10000}\) = 30 + 0.29 + 0.001975]</p> <p>30.29195<sup>g</sup> = (30.291975&times; \(\frac{9}{10}\))<sup>o</sup></p> <p>= 27.262777<sup>o</sup> = 27<sup>o</sup> 15' 46" Ans.</p>

Q13:

Convert into  centesimal system:

26o 46'


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Soln:</p> <p>Here,26<sup>o</sup>46' = (26 +\(\frac{46}{60}\))<sup>o</sup> = ( 26 + 0.766)<sup>o</sup> = 26.7666<sup>o</sup></p> <p> 26.7666<sup>o</sup> = ( 26.7666&times;\(\frac{10}{9}\))<sup>g</sup> = 29.74066<sup>g</sup></p> <p> = 29<sup>g</sup> 74' 6.6" Ans.</p>

Q14:

In a right angle triangle if one of acute angle is \(\frac{3}{10}\) of right angle. What is the measurement of other angle in grade?


Type: Long Difficulty: Easy

Show/Hide Answer
Answer: <p>Soln:</p> <p>Here, given</p> <p>One angle of a right angle triangle = \(\frac{3}{10}\)&times; 90 = 27<sup>o</sup></p> <p>If the third angle = x<sup>o</sup></p> <p>We know sum of angles of the triangle = 180<sup>o</sup></p> <p> or, x<sup>o</sup> + 27<sup>o</sup> + 90<sup>o</sup> = 180<sup>o</sup></p> <p> or, x<sup>o</sup> = 180<sup>o</sup> - 117<sup>o</sup> = 63<sup>o</sup></p> <p>but, 1<sup>o</sup> = (\(\frac{10}{9}\))<sup>g</sup> so,</p> <p> 63<sup>o</sup> = ( 63 &times;\(\frac{10}{9}\))<sup>g</sup> = 70<sup>grd</sup></p> <p>&there4; Third angle of the triangle = 70<sup>g</sup>. Ans.</p>

Q15:

One of the angles of triangle is 72o and the ratio of the other two angles is 1:3 find the angles in grade.


Type: Long Difficulty: Easy

Show/Hide Answer
Answer: <p>Soln:</p> <p>Here given,</p> <p>One angle of triangle = 72<sup>o</sup> = ( 72&times; \(\frac{10}{9}\))<sup>g</sup> = 80<sup>g</sup></p> <p>Ratio of the remaining two angles is 1: 3</p> <p>Let, these two angles be k<sup>g</sup> and 3k<sup>g.</sup>.</p> <p>We know, the sum of three angle of triangle = 200<sup>g</sup></p> <p> 80 + k + 3k = 200</p> <p>or, 4k = 200 - 80</p> <p>or, 4k = 120</p> <p>&there4; k = \(\frac{120}{4}\) = 30</p> <p>&there4; First angle = 80<sup>g</sup></p> <p> Second angle = k = 30<sup>g</sup></p> <p>and Third angle = 3k = 3&times; 30 = 90<sup>g</sup></p> <p>&there4; Three angles = 30<sup>g</sup> 80<sup>g</sup>90<sup>g</sup>. Ans.</p>

Q16:

To prove: Radian is a constant angle:

 


Type: Long Difficulty: Easy

Show/Hide Answer
Answer: <p><strong>Proof:</strong></p> <p>Let O be the centre and OA = r be the radius of a circle. Let AP be an arc which subtends an angle AOP on the centre O of the circle and the length of which is equal to the radius i.e. AP = r.</p> <p>Then, by definition of radian,&ang;AOP = 1 radian (1<sup>c</sup>).</p> <p>Now, producing AO up to B so that the arc length APB =\(\frac{1}{2}\) of the circumference =\(\frac{1}{2}\)&times; 2&Pi;r =&pi;r</p> <p>Where AOB = diameter = 2r.</p> <p>and&ang;AOB = 180<sup>o</sup>.</p> <p>Now, by the theories of geometry,</p> <p>the angles at the centre of the circle are proportionalto the arcs on which they stand:</p> <p>So, \(\frac{&ang;AOP}{&ang;AOB}\) =\(\frac{arc AP}{arc APB}\)</p> <p>or, \(\frac{1^c}{180^o}\) =\(\frac{r}{&pi;r}\)</p> <p>&there4; 1<sup>c</sup> = \(\frac{180^o}{&Pi;}\)</p> <p>i.e.&pi;<sup>c</sup> = 180<sup>o</sup></p> <p>Since the value of 1<sup>c</sup> =\(\frac{180^o}{&Pi;}\) is independent of r, so the radian is a constant angl. Proved</p>

Q17:

The exterior angle of a regular polygon is equal to \(\frac{1}{4}\) of its interior angle. Find the no. of sides of the polygon.


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Solution:</p>
<p>Let the no. of sides of the regular polygon be n.</p>
<p>Then, exterior angle = \(\frac{}{}\)&nbsp;&times; interior angle.</p>
<p>i.e. \(\frac{360}{n}\) =&nbsp;\(\frac{1}{4}\)&nbsp;&times; \(\frac{(n - 2) &times; 180&deg;)}{n}\)</p>
<p>or,&nbsp;\(\frac{360}{n}\) =&nbsp;\(\frac{45(n - 2)}{n}\)</p>
<p>or, n - 2 =&nbsp;\(\frac{360}{45}\)</p>
<p>or, n - 2 = 8</p>
<p>\(\therefore\) n = 10</p>

Q18:

Find the angle made by the minute hand and hour hand of a clock at half past three.


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Solution</p>
<p>When the clock strikes half past three.</p>
<p>The hour hand at 3 and minute hand at 6.</p>
<p>So, for real calculation,</p>
<p>The hour hand moves 30 minutes away from 3.</p>
<p>So, In 1 hour, the hour hand makes 30&deg;.</p>
<p>\(\therefore\) In \(\frac{}{}\) hour, the hour hand makes 30&nbsp;&times; \(\frac{1&deg;}{2}\) = 15&deg;</p>
<p>Also, the angle between the hour and minute hand when the hand is at 3 and 6 is 90&deg;.</p>
<p>So, the angle between the two hands at half past three 90&deg; - 15&deg; = 75&deg;.</p>

Q19:

A central angle of a circle of radius 20 cm intercepts an arc of 8 cm. Find the angle in degree.


Type: Very_short Difficulty: Easy

Show/Hide Answer
Answer: <p>Solution:</p>
<p>length of a arc (l) = 8 cm</p>
<p>radius of circle (r) = 20 cm</p>
<p>Then, central angle \(\theta\) = \(\frac{l}{r}\) = \(\frac{8}{20}\) = \(\frac{2}{5}\) radian.</p>
<p>So, \(\theta\) =&nbsp;\(\frac{2}{5}\) = \(\frac{180}{<span id="MathJax-Span-577" class="mrow"><span id="MathJax-Span-578" class="mi">&pi;</span></span>}\) = 22.92&deg;</p>

Videos

Classifying and Measuring Angles
Measuring angles in degrees | Angles and intersecting lines | Geometry | Khan Academy
Marriage

Marriage

A social phenomenon which establishes a kind of relation between male and female according to the social norms and values is known as marriage.It is a legal union of male and female as husband and wife.

Marriage has been considered as moral base of male and female relationship from the ancient time and has occupied important status in every society.

Types of Marriage

On the Basis of Number of Spouses

  • Monogamy: It is the process of being married only with one woman or man. It is the most practiced types of marriage in our society.
  • Polygamy: Polygamy is a type of marriage in which one man is married to two or more than two women in the same time. This is further divided into two types, sororal and non- sororal. In the sororal type of polygamy, all the wives are from the same parent whereas, in non- sororal type of polygamy, all wives belong to the different parent or are from different parents or family.
  • Polyandry: In this type, the woman is married to two or more than two men. This type of marriage is more common in Tibet, Africa, India and Mountain region of Nepal.

Polygamy

Polyandry

Here, a man gets married to more than one women.

Here, one woman is married to two or more than two men.

In polygamy types of marriage, usually, the husband is head of the family.

In polyandry type of marriage, usually, the wife is the head of a family.

They are further divided into two types, sororate, and non- sororate.

They are divided into fraternal and non- fraternal.

Here, the property is divided.

Here, the property is not divided.

It is found in modern society.

It is most common in Africa and India

On the Bais of Marriage Arrangement

  • Arrange Marriage: It is a type of marriage on which guardians of both male and female agreed to marry them according to social, religious and cultural norms.
  • Love Marriage: It is a type of marriage in which boy and a girl marry with their mutual understanding and agreement when they reach at the age of marriage.
  • Court Marriage: It is a type of marriage on which boy and girl go to the court and get married according to the law.

Arrange Marriage

 Love Marriage
The marriage which is arrange by parents or by the guardians is called arrange marriage. The marriage which is done without asking to family members or parents is called love marriage.
In this type of marriage parents are indirect or direct involved. But in love marriage there is no involvement of parents.
The old parents they like arrange marriage . The young people they give preference to love marriage.
According to Nepal, the legal age for both male and female is 18 years. In case of love marriage, the minimum age for both male and female is 20 years.
In this marriage may be male and female may not know each other. In this typeof marriage the boy and girl fell in love before marriage.
We can find this types of marriage in the traditional rural society. We can see this types of marriage in the morden socity .
On the Basis of Social System
There are different castes and cultural in our country and they practice marriage according to their culture. Following types of marriage are some of the examples of it:
  • Betel-Nut Marriage: In this type of marriage, a betel nut is given to girl's guardians from boy's side.
  • Arranged Marriage: In this type of marriage, the hand of girl and boy is asked for marriage in agreement of guardians.
  • Elopement: In this type of marriage, boy and girl elope and get married.
  • Marry with sister-in-law: In this type of marriage, a man marries and accepts his elder's brother's wife.
  • Marry with widow: In this type of marriage, a widow willingly marries with a person of her choice.
  • Gandharva Marriage: In this type of marriage, one marries by showing his/her talent by dancing in festivals.
  • Jari Marriage: In this type of marriage, a man who takes away another man's wife has to pay money to another man as compensation.
  • Bel Bibaha: In this marriage, young Newari girls they married with the fruit called 'bel' And worshipped bel as their husband.

Age of Marriage

According to recent law of Nepal, male should be of 20 years and female should be of 18 years and requires their parents permission to get married.

Advantages of marriage at proper age

Following are the advantages of marriage at proper age:

  • Healthy child is born form physically, mentally, morally matured mother.
  • Both male and female get opportunity to be educated.
  • Both male and female get opportunity ti learn income generating skills and cab be employed easily.
  • There is development of knowledge and understanding in parents.
  • Parents get more opportunities to work in social and economical field.
  • The age of studying, learning and playing cab be fully utilized.
  • The size of family become small.

Disadvantage of early marriage

The disadvantage of early marriage for both male and female are as follows:

  • There is less opportunity for parents to get education.
  • Female reproductive organs have not been matured.
  • Parents are bounded in family relations without utilizing their childhood rights.
  • Females do not get opportunities to learn income generating skills.
  • There is lack of appropriate knowledge about reproductive process, family planning etc.
  • There is more possibility of unstable family relation due to early marriage.

Lesson

Family Life Education

Subject

Enviroment Population and Health

Grade

Grade 9

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