Ask questions which are clear, concise and easy to understand.
Ask QuestionPosted by Shubham Rai 5 years, 4 months ago
- 1 answers
Ishita ???✨✨✨ 5 years, 4 months ago
Posted by Kunal Varshney 5 years, 4 months ago
- 1 answers
Posted by Tushar Mohan 5 years, 4 months ago
- 1 answers
Anamika Chandel 5 years, 4 months ago
Posted by Jyoti Nayak 5 years, 4 months ago
- 2 answers
Student ✍️✍️✍️ 5 years, 4 months ago
Yogita Ingle 5 years, 4 months ago
Petals are modified leaves that surround the reproductive parts of flowers. They are often brightly colored or unusually shaped to attract pollinators.
The sepals are the lower, or outermost, part of the flower. They fold over the tender, closed bud and protect it from cold and other injuries while it is developing. Usually sepals are green. In many flowers, however, they are as colorful as the petals and increase the flower's attractiveness to insects.
Posted by Vartika Pandey 5 years, 4 months ago
- 1 answers
Posted by Sanjay Kumaran 5 years, 4 months ago
- 0 answers
Posted by Hainary Brahma 5 years, 4 months ago
- 1 answers
Posted by Rudra Prasad 5 years, 4 months ago
- 1 answers
Yogita Ingle 5 years, 4 months ago
Let the base of the triangle 
then altitude of the triangle 
Hypotenuse = 13 cm
By Pythagoras theorem
(Hypotenuse) 2 = (Base)2 + (altitude)2
Length can not be negative hence we choose x = 12 cm
Altitude = x - 7 = 12 - 7 = 5 cm
Posted by Sk Singh Rajput 5 years, 4 months ago
- 0 answers
Posted by Vaishnavi Ankole 5 years, 4 months ago
- 0 answers
Posted by Vaishnavi Ankole 5 years, 4 months ago
- 0 answers
Posted by Suraj Bag 5 years, 4 months ago
- 2 answers
Sahil Banyal 5 years, 4 months ago
Yogita Ingle 5 years, 4 months ago
Large scale participation of women was an important feature of the Civil Disobedience Movement. During the Salt March, thousands of women came out of their homes to listen to the speeches of Gandhi. women participated in protest marches, manufactured salt, and picketed foreign cloth and liquor shops. Many went to jail. While women of high caste families participated from urban areas, in rural areas they came from rich peasant households.
But this did not bring about any radical changes in the positin of women. For a long time the Congress was reluctant to allow women to hold any position of authority within the organisation.
Posted by Kumari Arya 5 years, 4 months ago
- 1 answers
Yogita Ingle 5 years, 4 months ago
Dmitri Ivanovich Mendeleev, a Russian scientist arranged the elements in increasing order of their relative atomic masses. He was honoured with Noble prize in 1906 for his Periodic Table.
Mendeleev’s Periodic Law states that the <i>properties of elements are the periodic function of their relative atomic masses.</i>
Mendeleev arranged all 63 elements; which were discovered till his time; in the order of their increasing relative atomic masses in a tabular form. It is known as Mendeleev’s Periodic Table. He divided the table in eight columns and seven rows. The columns are known as groups and rows are known as periods.
- Elements are arranged in the periodic table in the increasing order of their relative atomic masses.
- Mendeleev divided his periodic table in eight groups and seven periods.
- Groups from I to VII are meant for normal elements and group VIII is for transition elements.
- Groups from I to VII have been divided in two sub groups, while group VIII is meant for three elements.
- Periods from 4th to 7th have been divided in two series: 1st series and 2nd series.
- Elements having similar properties have been kept in the same group. For example; lithium, potassium, rubidium, etc. are in 1st group.
Posted by Charu Vaid 5 years, 4 months ago
- 0 answers
Posted by Charu Vaid 5 years, 4 months ago
- 4 answers
Posted by Yash Pal 5 years, 4 months ago
- 2 answers
Gaurav Seth 5 years, 4 months ago
Comparison Of Physical Properties Of Metals And Non-metals
<colgroup> <col /> <col /> <col /> </colgroup>|
Property Type |
Metals |
Non-metals |
|
Physical State |
Solid at room temperature. Exception being mercury and gallium. |
Exist as solids and gases, exception being bromine. |
|
Density |
Highly dense |
Low. |
|
Melting and boiling points |
High melting point and boiling point Exception being gallium and caesium. |
Low melting point and boiling point. Exception being diamond and graphite. |
|
Malleability and Ductility |
malleable and ductile |
not malleable or ductile. |
|
Conductivity |
Conducts heat and electricity |
Poor/ bad conductors of heat and electricity exception being graphite. |
|
Lustre |
Shining lustre |
They have no lustre except for iodine. |
|
Sonorous sound |
Sonorous. |
Non-sonorous. |
|
Hardness |
Generally hard exception being Na, K |
Generally sof |
Posted by Shubham Sonu 5 years, 4 months ago
- 1 answers
Gaurav Seth 5 years, 4 months ago
The pact which was signed between Gandhiji and Lord Irwin on 5th March 1931. Under this pact Gandhiji consented to participate in a Round Table Conference in London whereas government agreed to release all the political prisoners.
Posted by Femina Rizvi 5 years, 4 months ago
- 4 answers
Sakshi Singh 5 years, 4 months ago
Posted by Hanshika (Honey) 5 years, 4 months ago
- 1 answers
Yogita Ingle 5 years, 4 months ago
The number of roots of a polynomial equation is equal to its degree. Hence, a quadratic equation has 2 roots. Let α and β be the roots of the general form of the quadratic equation :ax2 + bx + c = 0. We can write:
α = (-b-√b2-4ac)/2a and β = (-b+√b2-4ac)/2a
Here a, b, and c are real and rational. Hence, the nature of the roots α and β of equation ax2 + bx + c = 0 depends on the quantity or expression (b2 – 4ac) under the square root sign. We say this because the root of a negative number can’t be any real number. Say x2 = -1 is a quadratic equation. There is no real number whose square is negative. Therefore for this equation, there are no real number solutions.
Hence, the expression (b2 – 4ac) is called the discriminant of the quadratic equation ax2 + bx + c = 0. Its value determines the nature of roots as we shall see. Depending on the values of the discriminant, we shall see some cases about the nature of roots of different quadratic equations
Posted by Âåráv Âåráv 5 years, 4 months ago
- 1 answers
Anupama Das 5 years, 4 months ago
Posted by Ekta Bamniya 5 years, 4 months ago
- 4 answers
Khush Kaur 5 years, 4 months ago
Priyal Gupta 5 years, 4 months ago
Priyal Gupta 5 years, 4 months ago
Posted by Priyal Gupta 5 years, 4 months ago
- 1 answers
Yogita Ingle 5 years, 4 months ago
Calcination - It is the process of converting an ore into its oxide by heating strongly, below its melting point either in a limited supply or in absence of air. This method is commonly used for converting carbonates and hydroxides to their respective oxides. During calcination, moisture and volatile impurities are also removed.
For example: Calcium carbonate is converted into calcium oxide by calcination.
Posted by Shilpa Vasudevan 5 years, 4 months ago
- 4 answers
Yogita Ingle 5 years, 4 months ago
Apart from being scarce in nature, resources take millions of years to develop. . Over exploitation of these resources may exhaust them. Judicious use of resources is known as conservation of resources.
The principle of sustainable development should be followed while utilizing resources. Sustainable development can be defined as careful utilisation of resources to meet the requirements of the present generation as well as that of the future generation. Some common ways in which we can conserve resources are
1. To switch off fans and light when not in use
2. To not waste paper
3. To use water carefully
4. To harvest water
5. To reduce consumption, recycle and reuse waste materials
Posted by Sadhu Baba 5 years, 4 months ago
- 1 answers
Gaurav Seth 5 years, 4 months ago
साख की औपचारिक स्रोत से से तात्पर्य उन संस्थानों से है, जो बेहद कम दर पर ऋण उपलब्ध कराते है। ये संस्थान बैंक, सहकारी समितियां तथा अन्य आधिकारिक वित्तीय संस्थान आदि होते हैं।
यह औपचारिक स्रोत एक निश्चित और बेहद कम ब्याज दर पर ऋण उपलब्ध कराते हैं। औपचारिक स्रोत सरकार द्वारा नियंत्रित होते हैं और इनकी ब्याज दर भी सरकार किसी सरकारी संस्थान द्वारा नियंत्रित की जाती है। जैसे बैंकों का नियंत्रण भारतीय रिजर्व बैंक करता है और वही ब्याज की दरें तय करता है। इस तरह के ऋण के लेने में कोई सुरक्षा गारंटी दी जाती है और ऋणकर्ता द्वारा भुगतान करने में असफल होने पर गारंटी के रूप में दी गई संपत्ति आदि बैंक द्वारा ले ली जाती है, जिसकी नीलामी करके बैंक अपने ऋण की वसूली करता है।
Posted by Nikki Jaisawal 5 years, 4 months ago
- 1 answers
Yogita Ingle 5 years, 4 months ago
Pseudopods have two main functions: (1) locomotion and (2) capture of prey or engulfing of food. For instance, amoeba can crawl by extending the cytoplasm and the contraction of the filaments. The pseudopodbulge outward from the edge of the cell to pull in the entire organism as it goes forward.
Posted by Jotin Rai 5 years, 4 months ago
- 2 answers
Student ✍️✍️✍️ 5 years, 4 months ago
Yogita Ingle 5 years, 4 months ago
The heart is an organ that pumps blood throughout the body. Human circulatory system is responsible for the transport of materials inside the human body. The organs of the circulatory system are heart, arteries, veins and capillaries. It comprises four chambers:
- Atria (upper chambers)
- Ventricles (lower chambers)
Layers of heart
The wall of the heart is made up of three layers:
- Epicardium- This is a protective layer made of connective tissues.
- Myocardium- This layer forms the heart muscles.
- Endocardium- This is the innermost layer and protects the valves and the heart.
myCBSEguide
Trusted by 1 Crore+ Students
Test Generator
Create papers online. It's FREE.
CUET Mock Tests
75,000+ questions to practice only on myCBSEguide app
Namrata Jindal 5 years, 4 months ago
1Thank You