CBSE > Class 10 | CBSE Board | Homework Help

Magnesium is very reactive metal when it is kept in the open air it can react with gases present in the air..... The high reactive nature of magnesium is the reason ribbon should be cleaned Hope u understand the answer.....

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If angle A and angle B are acute angles such that cos A=cos B, then show that angle A = angle B

Posted by Khushi Agarwal 4 years, 2 months ago

CBSE > Class 10 > Mathematics

2 answers

Noni Jain 4 years, 2 months ago

According to the question:- Let cosA= Hypotenuse sideadjacentA AB AC Similarly, cosB= Hypotenuse sideadjacentB = AB BC Given that cosA=cosB AB AC = AB BC AC=BC In triangle, angles opposite equal side are equal ∠B=∠A

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Pushprajsinh Rathod 4 years, 2 months ago

Isme Cos A = Cos B given hai Cos done side se cut ho jayega.. Isliye angle A = angle B Hence proved

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Exercise 8.1 question 6

Posted by Khushi Agarwal 4 years, 2 months ago

CBSE > Class 10 > Mathematics

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No party system is ideal for all countries and all situations justify your statement

Posted by Aaditi Gupta 4 years, 2 months ago

CBSE > Class 10 > Social Science

1 answers

Sia ? 4 years, 2 months ago

This is because a party system is not something that has been adopted by the country but it something which has evolved due to the situations in a country. For example, in India, multi party system is prevalent due to diversity in cultures.

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(iii) The two graphs below show the relative activities of two enzymes in solutions of varying pH. Which of the following choices correctly identifies the enzymes? Enzyme activity Enzyme activity 5 5 6 7 8 PH 10 11 2. 12 13 14 12 13 14 Choose the correct combination of enzymes provided in the following table. Enzyme-1 (a) Chymotrypsin (b) Pepsin (c) Lactase 7 8 9 pH 10 11 Enzyme-2 Pepsin Carboxypeptidase Aminopeptidase (d) Enteropeptidase Amylase

Posted by Bhaskar Kumar 4 years, 2 months ago

CBSE > Class 10 > Science

0 answers

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Lockdown k chalte durga puja ka chitran kijiye

Posted by Dev Gurjar 4 years, 2 months ago

CBSE > Class 10 > हिंदी ए

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map political

Posted by Neha Kalra 4 years, 2 months ago

CBSE > Class 10 > Social Science

2 answers

Raj Nandini Chouhan? 4 years, 2 months ago

There's no map included in civics syllabus

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Raj Nandini Chouhan? 4 years, 2 months ago

I think there is no map included in civics syllabus Check syllabus

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Which of the following can change to anion

Posted by Suhail Sheikh 4 years, 2 months ago

CBSE > Class 10 > Science

2 answers

Sujeet Kumar Singh 4 years, 2 months ago

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Madhu Singh Madhu Singh 4 years, 2 months ago

Thank you

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Explain bonding in carbon.

Posted by Pratyush Prakash 4 years, 2 months ago

CBSE > Class 10 > Science

1 answers

Sushil Kokate 4 years, 2 months ago

Covalent bonding takes place in carbon it shares it's 4 valence electrons with some other nonmetal to get helium gas configuration.

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backyard of house, Payal has some empty space in the shape of a APQR. She decided to make it a garden. She divided the whole space into three parts by making boundaries AB and CD using bricks to grow flowers and vegetables where AB||CD||QR as shown in figure.

Posted by Xyz Xyz 4 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

Samridhi Agarwal 4 years, 2 months ago

A+B-c are composite number

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. Why was Gandhiji decided to call off the Rowlett Satyagraha?

Posted by Abhijit Kumar 4 years, 2 months ago

CBSE > Class 10 > Social Science

1 answers

Sia ? 4 years, 2 months ago

Gandhiji launched nationwide satyagraha against Rowlatt Act in 1919. This Act had been hurriedly passed despite the united opposition of Indian members.
This Act gave the government enormous powers to repress political activities, and allowed detention of political prisoners without trial for two years.
Rallies were organized in various cities, workers went on strike in railway workshops, and shops closed down.
Alarmed by the popular upsurge, and scared that lines of communication such as telegraph and railways would be disrupted, the British administration decided to clamp down on nationalists.
On 10^th April, the police in Amritsar fired upon a peaceful procession provoking widespread attacks on banks, post offices and railway stations. Martial law was imposed and General Dyer took command.
After the brutal killing and massacre of Jallianwala Bagh, violence spread nationwide and as a result, Mahatma Gandhi called off this Rowalatt Satyagraha movement

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Besides Gandhiji's who were the leaders of khilafat movement?

Posted by Darakhshan Shaikh 4 years, 2 months ago

CBSE > Class 10 > Social Science

2 answers

Sia ? 4 years, 2 months ago

Mohammad Ali and his brother Maulana Shaukat Ali joined with other Muslim leaders such as Pir Ghulam Mujaddid Sarhandi Sheikh Shaukat Ali Siddiqui, Dr. Mukhtar Ahmed Ansari, Raees-Ul-Muhajireen Barrister Jan Muhammad Junejo, Hasrat Mohani, Syed Ata Ullah Shah Bukhari, Maulana Abul Kalam Azad and Dr.

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Trupti Toke 4 years, 2 months ago

Mahommad Ali and Shaukat Ali

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Nibhandh on swapne nasti tar

Posted by Kanishka Sawant 4 years, 2 months ago

CBSE > Class 10 > Regional Language

1 answers

Sia ? 4 years, 2 months ago

'स्वप्ने नसती तर-' काय झालं असत ? असा प्रश्न मी माझ्या मित्राला विचारला, तर त्याने क्षणाचाही विलंब न करता उत्तर दिले की, 'तर मला गाढ झोप लागली असती' कारण तो नेहमी सांगत असतो की मला रात्री स्वप्ने पडतात त्यामुळे माझी रात्री झोप होत नाही. प्रत्येकालाच रात्री स्वप्ने पडत असतात आणि ही स्वप्ने एवढी चतुर असतात की, ज्या स्वप्नात आपण पूर्णपणे रममाण झालेलो असतो. ते स्वप्न, दुसऱ्याच क्षणाला जाग आल्यावर जरासुद्धा आठवत नाही जर काही आठवले तर त्याचा अर्थ लागत नाही. म्हणजे स्वप्न आणि जग यांमध्ये अशीही एक अदृश्य रेषा असते.

मला पंख असते तर

असे म्हटले जाते की, 'मनी वसे ते स्वप्नी दिसे!' पण जर खरे पहिले तर, झोपेत पडणाऱ्याला स्वप्नांमध्ये बराच गोंधळ उडालेला असतो. विविध ओळखीची असलेली माणसे स्वप्नात दिसतात, कधी दिवंगत झालेली माणसेसुद्धा स्वप्नामध्ये भेटतात आणि आपण पुरते गोंद्धाळून जातो. झोपलेली लहान मुलं पाहताना खूप मज्जा वाटते, कधी कधी ती स्वप्नांत हसत असतात; तर कधी मुसमुसतात. काही वेळा तर मोठी माणसेसुद्धा झोपेमध्ये बोलतात, ओरडतात कारण ती त्या वेळी त्या स्वप्नांच्या जगात असतात.

रात्री झोपेत पडणाऱ्या स्वप्नांपेक्षा थोडी वेगळी अशीही स्वप्ने असतात. जी स्वप्ने आपण जागेपणी पाहतो. कधी कधी काही माणसे अशा दिवास्वप्नांमध्ये प्रत्यक्ष कृती करण्याचेही विसरतात. आणि नंतर त्यांचे प्रचंड नुकसान होते.

परीक्षा नसत्या तर

काही माणसांनी पाहिलेली अशी दिवास्वप्ने मोठ मोठी कामे करून गेली असल्याचे आपल्या निदर्शनास येते. पहा ना, आपल्या छत्रपती शिवाजी महाराजांनी आणि त्यांच्या मातेने स्वराज्याचे स्वप्न पहिले. म्हणूनच तर सतराव्या शतकामध्ये महाराष्ट्रामध्ये मराठी राज्य उभे राहिले. ज्ञानेश्वरांसारख्या एका १७ - १८ वर्षाच्या तरुणाने भगवद्गीतेचे मराठीत रूपांतर करण्याचे स्वप्न बघितले आणि मराठीतील श्रेष्ठ ग्रंथ 'ज्ञानेश्वरी' निर्माण झाली. शहाजहान बादशहाने आपल्या पत्नीचे मुमताजचे भव्य स्मारक उभे करण्याचे स्वप्न पहिले आणि त्यामधूनच जगातील एक चमत्कार, आश्यर्य ठरलेला 'ताजमहाल' साकार झाला.

स्वप्ने नसती तर आज झालेला आपला विकास झालाच नसता. आज आपण विज्ञानाच्या जगामध्ये जगत असताना विविध साधनांचा दैनंदिन जीवनामध्ये वापर करतो. ही साधने बनवण्याची स्वप्ने ज्या लोकांनी पहिली ती सत्यात उतरवली म्हणूनच आपण ती साधने वापरू शकत आहोत. माणसाने पंख नसताना सुद्धा अवकाशात उडण्याचे स्वप्ने पहिले आणि त्याने विमानाचा शोध लावला. ही स्वप्नेच नसती तर आज पर्यंत लागलेले विविध शोध लागलेलेच नसते.

स्वप्ने नसती तर

स्वप्ने माणसाच्या जीवनाला अर्थ देतात माणूस स्वप्न पाहतो आणि ते पूर्ण करण्यासाठी मेहनत घेतो. काहींची स्वप्ने पूर्ण होतात तर काहींची अपूर्ण राहतात. प्रत्येकाची आपल्या जीवनातील स्वप्ने वेगळी असतात. त्याप्रमाणे प्रत्येकजण आपल्या जीवनात वाटचाल करत असतो. ज्यांची स्वप्ने पक्की असतात त्यांना त्याची स्वप्ने पूर्ण करण्यासाठी कितीही अडथळे आले तरी त्यांना पार करून ते आपण पाहिलेले स्वप्न पूर्णत्वास नेतात; आणि तेव्हाच काहीतरी अनमोल साकार होते.

स्वप्न नसतात आपली जणू प्रगतीच झाली नसती. आपल्या जीवनाला अर्थच उरला नसता. स्वप्ने पाण्यात आणि ती पूर्ण करण्यात काही वेगळाच आनंद असतो. आपण पाहिलेली स्वप्ने जेव्हा सत्यात साकार होतात तेव्हाचा तो क्षण अविस्मरणीय असतो. जर स्वप्ने नसती तर हे क्षण जगता आले नसते. स्वप्नांचे आपल्या जीवनामध्ये एक महत्वाचे स्थान आहे.

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All chap

Posted by Shashwat Singh 4 years, 2 months ago

CBSE > Class 10 > Science

1 answers

Sia ? 4 years, 2 months ago

What do you need ?

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Information about commercial crops explain

Posted by Tejaswini D 4 years, 2 months ago

CBSE > Class 10 > Social Science

1 answers

Sumit Kumar 4 years, 2 months ago

Commercial crops are those crops which are cultivated to gain profit and fulfill the demand of market. A well system of communication and transportation is needed for this.

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Area of the larget triangle that can be incribed in a emicircle of radius r unit

Posted by Harendra Choudhary Harendra 4 years, 2 months ago

CBSE > Class 10 > Mathematics

4 answers

Sia ? 4 years, 2 months ago

r²

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Harendra Choudhary Harendra 4 years, 1 month ago

?????

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Trupti Toke 4 years, 2 months ago

r²

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Noni Jain 4 years, 2 months ago

Area of triangleAs shown in figure, largest triangle inscribed in a semi-circle is triangle with base as diameter of circle and height as radius of circle. Thus,the area of triangle is A=1/2×2r × r A=r^2

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Class 10 english project wok

Posted by Kanhaiya Dubey 4 years, 2 months ago

CBSE > Class 10 > English Language and Literature

2 answers

Emily Abbrahaam 4 years, 2 months ago

We had to make 6 dress for the chapter 100 dresses

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Ripan Abc 4 years, 2 months ago

Acc. To me there is only project of economics as my teacher only give me this project

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Chapter 4 inserting picture and table html

Posted by Madhu Rajawat 4 years, 2 months ago

CBSE > Class 10 > Computer Applications (165)

1 answers

Nilesh Mehra 4 years, 2 months ago

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N square - 1 is divisible by 8 if n is

Posted by Nitika Sehgal 4 years, 2 months ago

CBSE > Class 10 > Mathematics

5 answers

Trupti Toke 4 years, 2 months ago

An odd integer

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Naina Gupta 4 years, 2 months ago

Odd integer

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Aniket Singh 4 years, 2 months ago

Odd positive integer

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Aniket Singh 4 years, 2 months ago

3 also

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Aniket Singh 4 years, 2 months ago

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The display of military troops was a symbol of

Posted by Guransh Singh 4 years, 2 months ago

CBSE > Class 10 > English Language and Literature

1 answers

Sia ? 4 years, 2 months ago

When Mandela had taken oath, South African jets displayed the military power. It also showed the loyalty of military to democracy. The highest military generals saluted him.

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Power of the lens is -40,its focal length is: a. 4m b. -40m c. -0.25m d. -25m ONLY ANSWER IF YOU ARE SURE

Posted by Moksh Yadav 4 years, 2 months ago

CBSE > Class 10 > Science

5 answers

Ansh Yadav 4 years, 2 months ago

-0.025 D

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Gungun Pandey 4 years, 2 months ago

-2.025D

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Komal Yadav 4 years, 2 months ago

-0. 025 D

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Dhana Lakshmi S 4 years, 2 months ago

-0.025 D

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[email protected] Wachhami 4 years, 2 months ago

-2.5m

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Assertion (A): The concave mirror is used to converge the rays of light at a point. Reason (R): The concave mirror is also called as converging mirror. (A)Both A and R are true and R is the correctexplanation of A. (B) Both A and R are true but R is NOT the correct explanation of A. (C) A is true but R is false. (D) A is false and R is True.

Posted by Moksh Yadav 4 years, 2 months ago

CBSE > Class 10 > Science

5 answers

Madhav Bacharwar 4 years, 2 months ago

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Simranjeet Kaur 4 years, 2 months ago

Option A

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Naina Gupta 4 years, 2 months ago

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Sumit Kumar 4 years, 2 months ago

B, is correct option.

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Fulendra Kumar 4 years, 2 months ago

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Crook

Posted by Shyam Chandak 4 years, 2 months ago

CBSE > Class 10 > English Language and Literature

3 answers

Trupti Toke 4 years, 2 months ago

Criminal

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Ayush Kumar 4 years, 2 months ago

Apradhi

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Sia ? 4 years, 2 months ago

What you want to ask ?

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It is given that in a group of 3 students, the probability of 2 student not having the same birthday is 0.992 what is the probability that the 2 student have the same birthday ?

Posted by Brunda Khushi 4 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

Sheen Mizan 4 years, 2 months ago

0.008

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Which of the following experiment have equally likely outcome? Explain 1. A driver attempts to start a car. The car that does not start. 2. A player attempt to shoot a basketball she/he shoot or misses the shot. 3. A trail is made to answer a true or false question. The answer is right or wrong 4. A Baby born. It is a boy and a girl .

Posted by Brunda Khushi 4 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

Aniket Singh 4 years, 2 months ago

Third and fourth questions are EQUALY LIKELY because there can be only two type of answers

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Prove P(AUB)= P(A) U P(B)

Posted by Gloria Kofisiachen 4 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

Sia ? 4 years, 2 months ago

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What ate styles? What are the advantages of using styles

Posted by Yami Likha 4 years, 2 months ago

CBSE > Class 10 > Information Technology (402)

3 answers

Sia ? 4 years, 2 months ago

Style is a collection of formatting instructions. You use styles to format the paragraphs in your document. You would use the Title style for your title, body Text style for body text, caption style for the picture captions, and heading 1 for the major headings.

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Anamika Sharma 4 years, 2 months ago

Using styles lets you quickly format a document with a consistent and professional look. Using styles enables you to quickly modify the look of a document, instead of manually formatting all the separate components. Using styles encourages a consistent format and look to your documents.

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Ali Kumar 4 years, 2 months ago

Advantages Using styles lets you quickly format a document with a consistent and professional look. Using styles enables you to quickly modify the look of a document, instead of manually formatting all the separate components. Using styles encourages a consistent format and look to your documents.

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Which computer OS is not required mouse

Posted by Taniya Chauhan Chauhan 4 years, 2 months ago

CBSE > Class 10 > Information Technology (402)