Explore topic-wise InterviewSolutions in .

The Jawar mines of Udaipur are famous for Zinc.

Given:

The price ratio of a Samsung mobile and LG mobile = 10 : 7

Price of Samsung = Price of LG + Rs 3000

Calculation:

Let the price of Samsung and LG mobiles be 10x and 7x.

Price of Samsung, 10x = Price of LG, 7x + Rs 3000

3x = 3000 

Or, x = Rs 1000

Price of LG = 7x = Rs 7000

∴ The price of LG mobile is Rs 7,000.

The correct answer is tata.

• Tata Vadhya(String Instruments):
  • In the Tata vadhya musical instruments sound is made by the vibration of a chord or a string.
  • The vibrations are made by plucking a string or blowing on a string.
  • The pitch of the note produced depends on the length of the vibrating wire, the degree of the tightening of the wire.
  • The duration of sound also depends on the vibrating string's length.
  • e.g. Santoor, Tanpura, Sarod, Veena, Rabab, Surbahar.

• Sushira Vadhya(Wind Instruments):
  • These instruments have various holes in which the air is blown and vibrates creating different tones or sounds.
  • It is also known as Aerophones.
  • The frequency of the sound can be controlled by the pressure of air blown in it.
  • e.g. Flute, Magudi, Harmonium, Alghoza, Nadaswaram.
• Avanaddha Vadya:
  • In the Avanaddha Vadya category of instruments, the sound is produced by striking the animal skin which has been stretched across an earthen or metal pot or a wooden barrel or frame.
  • e.g. Tabla, Ankya, Damaru, Alingya.
• Ghana Vadya:
  • The earliest instruments invented by man are said to be the Ghana Vadya.
  • Once constructed, this variety of instruments do not need special tuning prior to playing.
  • These instruments were the extension of the human body such as sticks, clappers, rods, etc., and were also closely related to objects of utility in daily life such as pots and pans, jhanj, falams, etc.

n = 6!·5! (5 girls together arranged along with 5 boys)

m = ⁵C₄ .(7! -2.6! 4!). 4! 

(4 out of 5 girls together arranged with others – number of cases all 5 girls are together)

m/n = 5.5 .6! .4! / 6!. 5! = 5

x + y 

= 2sin² θ + 2cos² θ + 1 

= 2(sin² θ + cos² θ) + 1 

= 3

Sin 30˚ + Cos B = 1 

\(\frac{1}{2}\)+ Cos B = 1 

Cos B = \(\frac{1}{2}\)

B = 60˚

The ratio C divides AB is 8:5

1,4-benzenedicarboxylic acid

\(\frac{AD}{BD}=\frac{AE}{CE}\)

\(\frac{3}{4.5}=\frac{2}{CE}\)

CE = 3cm

A galvanometer is a device that is used to detect small electric current or measure its magnitude. The current and its intensity is usually indicated by a magnetic needle’s movement or that of a coil in a magnetic field that is an important part .

A galvanometer is a device (instrument) used in a circuit to detect weak electrical voltages and currents. It has a coil of a solid laminated horse shoe magnet pivoted (or suspended) between concave pole faces. It deflects as an electrical current travels through the coil.

Given P₁ = 50 Watt

P₂ = 100 Watt

V = 220 Volt

Parallel combination then total equivalent power is

P = P₁ + P₂

P = 50 + 100

P = 150 Watt

Current

P = IV

I = \(\frac{P}V\)

I = \(\frac{150}{220}\)

I = 0.68 ampere

Hint— Due to aerenchyma present in the swollen petiole.

The correct answer is Japan.

In news

• Japan’s Sumitomo Forestry company and Kyoto University have decided to collaborate to develop the world’s first wooden satellite by 2023.

• The team is also working towards developing wooden materials extremely resistant to temperature changes and sunlight.
• According to the European Space Agency (ESA) statistical model, there are more than 130 million pieces of anthropogenic space debris—waste residue due to human activities—smaller than a millimetre around our planet.
• Most of the “space junk” can reach a speed of 18,000 miles per hour, almost seven times faster than a bullet.
• According to a Professor at Kyoto University and a Japanese Astronaut, Takao Doi, the satellites create tiny alumina particles after coming into contact with Earth's atmosphere. 
• These alumina particles will float in the upper atmosphere for many years and eventually will affect the Earth’s environment.
• The wooden satellites will help in the cutting of space junk as it will burn up without releasing any form of harmful substances into the atmosphere. 

Explanation:

The Weekly Iron and Folic Acid Supplementation (WIFS) Programme 

• The Ministry of Health and Family Welfare has launched the Weekly Iron and Folic Acid Supplementation (WIFS) Programme to meet the challenge of high prevalence and incidence of anaemia amongst adolescent girls and boys.
• WIFS is the evidence-based programmatic response to the prevailing anaemia situation amongst adolescent girls and boys through supervised weekly ingestion of IFA supplementation and biannual helminthic control.
• The long term goal is to break the intergenerational cycle of anaemia, the short term benefits are of nutritionally improved human capital.
• The programme implemented across the country both in rural and urban areas.

Explanation:

Chest compressions

• Chest compressions are indicated for a heart rate that is < 60 bpm despite adequate ventilation with supplementary oxygen for 30 seconds.
• As ventilation is the most effective action in neonatal resuscitation. Because chest compressions are likely to compete with effective ventilation, rescuers should ensure that assisted ventilation is being delivered optimally before starting chest compressions.
• Compressions should be delivered on the lower third of the sternum, to a depth of approximately one-third of the anterior-posterior diameter of the chest.

Two techniques have been described

1. Compression with two thumbs with fingers encircling the chest and supporting the back.
2. Compression with two fingers with a second hand supporting the back.

Explanation:

Kegel exercise

• Bladder control depends on muscles working together when the bladder is filling with urine.
• The bladder muscle should be relaxed and the muscles around the urethra (the tube that urine passes through), called the pelvic floor muscles, should be tight.
• Exercises that strengthen the pelvic floor muscles can help hold urine inside the bladder, preventing leakage. These pelvic floor muscle exercises are commonly called "Kegel" exercises, named after the doctor who developed them.​

Kegel exercises benefit in case of:

• Leak a few drops of urine while sneezing, laughing or coughing (stress incontinence).
• Have a strong, sudden urge to urinate just before losing a large amount of urine (urinary urge incontinence).
• Leak stool (faecal incontinence).
• Kegel exercises can also be done during pregnancy or after childbirth to try to improve your symptoms.
• Kegel exercises are less helpful for women who have severe urine leakage when they sneeze, cough or laugh. Also, Kegel exercises aren't helpful for women who unexpectedly leak small amounts of urine due to a full bladder (overflow incontinence).

Explanation:

Partogram

• The condition of the mother, the condition of the fetus, and the progress of labour are recorded on the partogram.
• A partogram or partograph is a composite graphical record of key data (maternal and fetal) during labour entered against time on a single sheet of paper.
• Relevant measurements might include statistics such as cervical dilation, fetal heart rate, duration of labour and vital signs.
• It is intended to provide an accurate record of the progress in labour so that any delay or deviation from normal may be detected quickly and treated accordingly. 
• A Cochrane review came to the conclusion that there is insufficient evidence to recommend partographs in standard labour management and care.

Correct option (A) Johann Gutenberg

Explanation:

Johann Gutenberg developed the first known printing press in 1430s.

Fate of Pyruvic Acid: The breakdown of pyruvic acid takes place in mitochondria and the molecules formed depend on the type of respiration in a particular organism. Respiration is of two types, viz. aerobic respiration and anaerobic respiration.

Anaerobic Respiration: This type of respiration happens in the presence of oxygen. Pyruvic acid is converted into carbon dioxide. Energy is released and water molecule is also formed at the end of this process.

Aerobic Respiration: This type of respiration happens in the absence of oxygen. Pyruvic acid is either converted into ethyl alcohol or lactic acid. Ethyl alcohol is usually formed in case of anaerobic respiration in microbes; like yeast or bacteria. Lactic acid is formed in some microbes as well as in the muscle cells.

Pyruvate to ethanol, CO₂ and energy
Pyruvate to lactic acid and energy
Pyruvate to CO₂, H₂O and energy

1-  A) outside

2-  B) looked

3-  A) However

4- D) discouraged

5- C) Modern

6- C) systems 

7-  A) by

8- A) middle

9- C) first

10- B) appear

11- A) a

12- D) special

13- A) change

14- C) wake

15- B) replaced

The correct answer is ​to protect the environment from Persistent Organic Pollutants.

• The Stockholm Convention is a global treaty to protect human health and the environment from persistent organic pollutants (POPs).
• POPs are chemicals that remain intact in the environment for long periods, become widely distributed geographically, accumulate in the fatty tissue of living organisms, and are toxic to humans and wildlife. 

• The negotiations for the Convention were completed on 23 May 2001 in Stockholm.
• The convention entered into force on 17 May 2004 with ratification by an initial 128 parties and 151 signatories.
• Co-signatories agree to outlaw nine of the dirty dozen chemicals, limit the use of DDT to malaria control, and curtail inadvertent production of dioxins and furans.

Amphictyonic League was established in the early 6^th century BC with a view to regulate interstate relations to avoid wars and to promote unity among nations.

Delhi and Beijing, Bangalore and Chengdu are the two pairs of sister cities between India and China.

Factors for Indo-USSR close ties. 

1. India and USSR considered the peaceful settlement of disputes between states as most crucial for the future of the human race. 

2. Both believed in national freedom and social equality as prerequisite of just world order. 

3. Support to liberation movements across the world recognized by both countries.

Privatization is the process of transferring ownership of a business, enterprise, agency, public service or public property from the public sector to private sector.

1. look at - to consider, think about, or study something, especially in order to learn something useful or important: 

I'm going to look at the budget estimates on the weekend.

2. Look out – to be careful, to be alert

Look out! There’s a car coming.

3. Look up – to get better (about a situation)

Things are starting to look up, I can see a light at the end of the tunnel.

4. Look into – to investigate something

I’ll into this issue, and I’ll give you an update tomorrow.

5. look down - to have a low opinion of somebody

Piers is very arrogant. He looks down on uneducated people.

6. Look round

1. to turn your head

He heard a voice behind him so he looked round but couldn’t see anyone.

2. to look for things for pleasure, for example in a shop, museum

He looked round the museum and then went to the café.

7. Look for – to search for something, to hope to get something

I am currently looking for a new job.

(look for someone/something) to hope to get something that you want or need

He was looking for work as a builder.

We are looking for a partner in a new business venture.

Dr B. R. Ambedkar.

The word Terrorism is derived from the Latin word “terrere”.

Exploitation which leads to economic in-equality is called economic exploitation.

Correct option is C) shopping

Alliance with other like minded political parties before going to election is called prepoll alliance.

Coalition government will be formed by the opportunist political leaders after elections it is called post-poll alliance.

Janata Dal (United) is a party of  Bihar.

Justice M.N. Venkatachaliah was the Chairman of the Commission appointed for the review of the Constitution.

Problems involving subtraction are more complex for children to handle than those involving addition. This is because they have to identify which quantity has to be taken away from which. This is very important because so far they were exposed to addition, where 2 + 3 = 3 + 2. But 9 - 3 is not the same as 3 - 9, that is, subtraction is, not commutative.

Let us now consider the different types of word problems related to subtraction that children come across. Broadly, there are four such models, namely:

• Complementary addition- What number/how many things should be added to one number or group to get the other. (e.g. "A crate can have 50 bottles. 20 bottles are already in it. How many more bottles can be put into the crate?")
  • It also helps children learn to subtract mentally and get comfortable with adding tens and ones in their heads. 
• Partitioning- An action of taking away or removing some objects, and finding out how many remain. (e.g., there were 15 toffees in this container, and 10 have been eaten. How many are left?)
• Reduction- When the original amount and the balance or remainder are known, to find the part that has been given away. (e.g., there were 15 toffees in a container, and there are only 5 now. How many have been eaten?)
• Comparison- The difference between two groups or numbers, namely, how much one is greater than the other, how much more is in one group than in the other. (e.g., if Munna has 15 erasers and Munni 5, how many less does Munni have than Munna?)

Hence, it can be concluded that the above problem is about complementary addition.

Explanation:

• Bead strings are ideal for helping to maintain student interaction in the classroom.
• If a student reads 203 as twenty-three then a teacher can use beads and strings activity.
• This activity is great for emergent learners during maths lessons.
• They are perfect for both group as well as individual led work, encouraging problem-solving, number exploration, and familiarity with multiples of ten.

Beads and Strings activity:

• Bead strings are used for visualizing numbers with a moveable object.
• A teacher can hide or cover certain parts of a bead string so the students find it easier to count each bead by counting it one by one. 
• We can Use bag tags to label the beginning and end of the string as 0 and 100.
• A 10 bead string contains five white and five red beads.

​Recognizing the number 203:

• Split the beads to represent the numbers 20 & 23, then ask the pupil what number it represents.
• From the beads below, you could prompt students to count all the green beads, and write down the number it represents.
• Then by doing this activity a pupil comes to know that there is a difference between 23 & 203. So 

So Misconception of Recognising a Number can be cleared by Beads and Strings activity.  So Option 3 is the correct answer.

Other Uses of beads and strings activity:

• Recognizing numbers
• Place value
• Estimation skills
• Large numbers
• Addition and subtraction

Number Concepts: Counting, recognising and using numerals correctly, comparing numbers and operations on numbers are considered as important milestones in the development of number concepts.

One-to-one Correspondence: It refers to the concept that each object is counted only once.

• First assigning a number to a particular object which forms one of a sequence of objects is known as ordinal aspect of number. Ordinality refers to the order (what is the position?) of the objects in a collection. Ordinality develops earlier at about 3 to 5 years of age after the child is able to match the objects in two collections using the method of one-to-one correspondence along with the knowledge of number names.
• The second and final step of counting is of knowing that the number of objects in a collection (‘manyness’, or ‘numerosity’) i.e. the cardinal aspect. Cardinality refers to the size (How many objects?) of the collection.

Hence, we conclude that one-to-one correspondence is one of the aspect of number sense.

The numbers that are found to have been constructed to measure different parts of a complete object are known as fractional numbers (or fractions).
Note that:

• Modelling situations using quantities, shapes and forms is one of the best strategies would be most appropriate to follow.
• Such representations aid visualization, clarify essentials, help us discard irrelevant information. 
• Again, what we need are illustrations that show a multiplicity of representations so that the relative advantages can be understood.
• For example, a fraction can be well understood through an object and its cut pieces that means, to explain the error by using a fraction kit or paper folding.
• Representations are useful and appropriate in a different context.

Hence, we conclude that the above situation can be best explained by using paper folding.

नदियों के देश कहे जाने वाले भारत में मुख्यतः चार नदी प्रणालियाँ है (अपवाह तंत्र) हैं। उत्तरी भारत में सिंधु, मध्य भारत में गंगा, उत्तर-पूर्व भारत में ब्रह्मपुत्र नदी प्रणाली है। प्रायद्वीपीय भारत में नर्मदा कावेरी महानदी आदी नदियाँ विस्तृत नदी प्रणाली का निर्माण करती हैं।

सेवा में,

प्रधानाचार्य महोदय,

राजकिय कन्या विधालय,

विकास नागर शिमला.

विषय: विज्ञान प्रयोगशाला का अत्याधुनिक बनाने की आवश्यकता

महोदय जी,

   सविनय निवेदन है कि मै दशम कक्षा की छात्र हू। मेरी विज्ञान  के विषय में बहुत रूचि है। मैं विद्यालय की प्रयोगशाला में कुशल प्रशिक्षण पाना चाहती हूँ । परंतु हमारी प्रयोगशाला में हमें न तो अधिक समय रहने दिया जाता है और न ही पर्याप्त उपकरण और साधन हैं जिनके आधार पर हम  कुछ प्रयोग कर सके और कौशल प्रशिक्षण का गया ले सके ।

विज्ञान एक ऐसा विषय जो बिना प्रयोग के समझ नहीं आता। आप से प्राथ्रना है कि हमारी प्रयोगशाला को अत्याधुनिक बनाए। प्रयोग  करने के लिए उपकरण रखे जाए। छात्र—छात्राओं को उचित प्रशिक्षण् प्रदान करने की व्यवस्था करें। आपकी महान   कृपा होगी।  

धन्यवाद सहित|

आपकी आग्ताकरिणी शिष्य  

वनिता  

कक्षा दशम 'ए'

इस कहानी के माध्यम से लेखक ने स्पष्ट किया है कि किसी भी घर में पारिवारिक शांति और सामंजस्य बनाए रखने में घर की स्त्रियों की अहम् भूमिका होती है। घर की स्त्रियों अपनी समझदारी से टूटते और बिखरते परिवारों को भी जोड़ सकती है।

whats your questions bro

Bajirao died on April 28, 1740, of a sudden fever, at his camp. He was cremated on April 28, 1740 at Raverkhedi, on the banks of the river Narmada in a village near Indore, Madhya Pradesh.

Whittaker's method of classification is more scientific and natural because of the following merits: 1) It is the most accepted modern classification system due to the phylogenetic placing of different living organisms. 2)In this system separation of prokaryotes into an independent kingdom is justifiable.

किसी अभिक्रिया में पदार्थ का उपचयन तब होता है जब उसमें ऑक्सीजन की वृद्धि या हाइड्रोजन का ह्रास होता है इसके विपरीत पदार्थ का अपचयन तब होता है जब उसमें ऑक्सीजन का ह्रास या हाइड्रोजन की वृद्धि होती है। उदाहरण- कॉपर चूर्ण के सतह पर कॉपर ऑक्साइड (II) की काली परत चढ़ जाती है।

Differences in character within very closely related groups of organisms are referred to as variation.