Ask questions which are clear, concise and easy to understand.
Ask QuestionPosted by Aviral Garg 5 years, 3 months ago
- 2 answers
Gaurav Seth 5 years, 3 months ago
In some countries only one party is allowed to control and run the government.These are called one party system. For example, China has a single party—Communist Party. One-party system is not a good option because it is not a democratic option. In the countries having one party system, the liberty of the individual is lost because people are deprived of the right of electing representatives. There is one candidate in whose favour all the citizens have to
vote. It cannot be called as elections in real sense.
Posted by Sharleez Fatima 5 years, 3 months ago
- 2 answers
Akanksha Shukla 5 years, 3 months ago
Posted by Dhiraj Singh 5 years, 3 months ago
- 1 answers
Meghna Thapar 5 years, 3 months ago
Displacement is defined as the moving something from its position. Rotation is defined as the action of rotating around an axis or center. A geometrical figure can be displaced or rotated in either order to produce the same end result. There are some general rules for the rotation of objects using the most common degree measures (90 degrees, 180 degrees, and 270 degrees). The general rule for rotation of an object 90 degrees is (x, y) --------> (-y, x).
Posted by Raghvendra Kumar 5 years, 3 months ago
- 5 answers
Posted by Nikhil Solanke 5 years, 3 months ago
- 4 answers
Posted by Anushka Mittal 5 years, 3 months ago
- 4 answers
Posted by Hilium Debbarma 5 years, 3 months ago
- 1 answers
Yogita Ingle 5 years, 3 months ago
Several interconnected food chains form a food web. A food web is similar to a food chain but the food web is comparatively larger than a food chain. Occasionally, a single organism is consumed by many predators or it consumes several other organisms. Due to this, many trophic levels get interconnected, and the food chain fails to showcase the flow of energy in the right way. But, the food web is able to show the proper representation of energy flow, as it displays the interactions between different organisms.
When there are more cross interactions between different food chains, the food web gets more complex. This complexity in a food web leads to a more sustainable ecosystem.
Posted by Chandashekhar Chandashekhar 5 years, 3 months ago
- 2 answers
Manshi Kharkwal 5 years, 3 months ago
Posted by Lipi Nag 5 years, 3 months ago
- 4 answers
Posted by Nimesh Kumar 5 years, 3 months ago
- 0 answers
Posted by Lipi Nag 5 years, 3 months ago
- 5 answers
Pooja Jangid 5 years, 3 months ago
Lipi Nag 5 years, 3 months ago
Posted by Bhumittal Sharma 5 years, 3 months ago
- 0 answers
Posted by Shashank Agasagi 5 years, 3 months ago
- 1 answers
Posted by Lipi Nag 5 years, 3 months ago
- 0 answers
Posted by Mritunjay Tripathi 5 years, 3 months ago
- 2 answers
Pranav Chaudhary 5 years, 3 months ago
Yogita Ingle 5 years, 3 months ago
Mrs Pumphrey thought that Tricki was suffering from malnutrition, as he was weak and listless. So, she started to give him extra snacks like cod-liver oil and malt between the main meals and Horlicks after dinner to make him stronger. She aslo continued his cream cakes and chocolates.
Posted by Vikendra Chaudhary 5 years, 3 months ago
- 1 answers
Gaurav Seth 5 years, 3 months ago
Sample Letter to the Editor
Q1. You are Radha G, member of NGO AWAAZ. Write a letter to the editor of a national daily for a public movement to clean the Yamuna river. (You must introduce yourself, describe how the people are to be blamed for polluting the river and suggest the need for installing water treatment plant to clean the river).
A.
33, Jal Vihar
Wazirabad, New Delhi - 33
Dated: 17 July 2017
The Editor
Hindustan Times
New Delhi.
Subject: Need for people’s movement for a clean Yamuna
Dear Editor
I am Radha G, member of NGO AWAAZ. I am writing to you in order to highlight the deteriorating condition of river Yamuna.
The city of Delhi is getting contaminated water from river Yamuna. The residents are to be blamed for this. They pollute the river with garbage, sewage and filth. The river water is full of bacteria, plastic, chemicals and other waste materials. It is unfit for consumption.
The people have been demanding a Water Treatment plant. The authorities have not yet responded to the repeated requests.
I request you to highlight the problem in your newspaper and arouse public interest. We all need to get together in order to get the plant set up in the area.
Thank You
Yours sincerely
Radha G
Member AWAAZ.
Posted by K P 5 years, 3 months ago
- 2 answers
Mayank Rauthan 5 years, 3 months ago
Yogita Ingle 5 years, 3 months ago
wo national anthems were sung on the day of the inauguration, one by the whites and another by the blacks. This symbolized blacks and whites becoming equal.
Posted by Sakshi Kumari 5 years, 3 months ago
- 1 answers
Yogita Ingle 5 years, 3 months ago
Given O is a centre of a concentric circles.
Let r =OB = 7cm
R = OA = 14cm
<AOC = 40°
We know that,
Now ,
Area of the shades region
= Area of the sector AOC - Area of the sector ABD
=
=
=
=
=
=
Therefore,
Area of the shaded region =
Posted by Renu Bala 5 years, 3 months ago
- 2 answers
Lipi Nag 5 years, 3 months ago
Yogita Ingle 5 years, 3 months ago
Both oxygen and carbon dioxide have to be transported by the blood, therefore, the heart has different chambers to prevent the oxygen-rich blood from mixing with the blood-containing carbon dioxide. The carbon dioxide-rich blood has to reach the lungs for the carbon dioxide to be removed, and the oxygenated blood from the lungs has to be brought back to the heart. This oxygen-rich blood is then pumped to the rest of the body.
Oxygen-rich blood from the lungs comes to the thin-walled upper chamber of the heart on the left, the left atrium. The left atrium relaxes when it is collecting this blood. It then contracts, while the next chamber, the left ventricle, relaxes, so that the blood is transferred to it. When the muscular left ventricle contracts in its turn, the blood is pumped out to the body.
De-oxygenated blood comes from the body to the upper chamber on the right, the right atrium, as it relaxes. As the right atrium contracts, the corresponding lower chamber, the right ventricle, dilates. This transfers blood to the right ventricle, which in turn pumps it to the lungs for oxygenation.
Posted by Ayush Gupta 5 years, 3 months ago
- 1 answers
Riya Rana 5 years, 3 months ago
Posted by Arsh Singh 4 years, 10 months ago
- 1 answers
Gaurav Seth 4 years, 10 months ago
Write a letter to Delhi Sports, Daryaganj, New Delhi, placing an order for sports articles like footballs, cricket balls, Tennis balls and cricket bats to be supplied to your school. Sign as Ravi/Raveena, Sports Secretary.
Answer:
Happy Time Public School
Bhajan pura
New Delhi 1100XX
19 January 20XX
The Manager
Delhi Sports, Darya Ganj
New Delhi 1100XX
Dear Sir
Subject: Placement of sports goods
This has reference to the quotation dated 19 December 20XX. Kindly send the following items at the above address.
| Name of the Items | No. of Items | Remarks |
| Football | 10 | Sparton |
| Cricket balls | 10 | Leather |
| Tennis balls | 20 | Vicky (brand) |
| Cricket bats | 10 | SS |
All the items should be in good condition, well bound and packed properly and delivered within a week. The payment will be made by cash once the items reach us. Any damage during transportation would be your responsibility. Though in the past, you have never given us any opportunity to complain and – the goods have always reached us well on time, and in excellent condition as per our specifications, we do expect the same delivery this time as well.
Yours faithfully
Raveena
(Secretary)
Posted by Sushil Kumar 5 years, 3 months ago
- 1 answers
Posted by Misthi Upadhyay 5 years, 3 months ago
- 2 answers
Ridhima Dang 5 years, 3 months ago
Gaurav Seth 5 years, 3 months ago
Fleming's right hand rule states to hold the forefinger, middle finger and thumb of right hand mutually perpendicular to each other so that the forefinger points in the direction of external magnetic field and thumb points in the direction of motion of conductor. Now the direction in which the middle finger is pointed gives the direction of induced current in the conductor. Fleming's right hand rule is used to determined the direction of induced current in the conductor when a conductor moves in a region of magnetic field.
Posted by Ashish Sharma 5 years, 3 months ago
- 0 answers
Posted by Unbelieve Able 5 years, 3 months ago
- 1 answers
Gaurav Seth 5 years, 3 months ago
Valency is the combining power or the combining capacity of an atom. The number of electrons gained, lost or shared by an atom so as to achieve the nearest noble gas configuration gives us valency.
Posted by M.D Junaid 243 5 years, 3 months ago
- 5 answers
Mayank Rauthan 5 years, 3 months ago
Posted by Unbelieve Able 5 years, 3 months ago
- 2 answers
Manoj Kumar 5 years, 3 months ago
Anushka Gurusingha 5 years, 3 months ago
Posted by Shanthi.K Shanthi.K 5 years, 3 months ago
- 2 answers
Yogita Ingle 5 years, 3 months ago
As we move above the Earth’s surface, the density of air goes on decreasing. There is a gradual increase in the refractive index from the atmosphere to the Earth’s surface. Thus, the refractive index of the atmosphere is different at different altitudes.
Anshika Pandey 5 years, 3 months ago
Posted by Raj Sandeep 5 years, 3 months ago
- 1 answers
Gaurav Seth 5 years, 3 months ago
There is no electric field near a long, straight-thin uniform current-carrying conductor. Therefore, a charged particle moving parallel to the conductor experiences a magnetic force, as per the electrodynamics. The left hand Fleming rule came into existence through John Ambrose Fleming in the 19th Century. It was the simplest approach to understand the direction of the motion or the direction of the electric current. The left-hand rule of Fleming states that when we stretch the forefinger and middle finger of the left hand in a manner that they are mutually perpendicular to each other.
Now, if the forefinger is taken as the direction of the current and the middle finger towards the magnetic field then the thumb points towards the motion of the conductor or the force. It is one of the rules of electricity. The reason being when a current-carrying the conductor comes under the magnetic field there is likely to be a force acting on the conductor. With the help of Fleming's left-hand rule, the director of the force can be determined.
Usage of The Rule
Generally, Fleming's left-hand rule is used for electric motors. On the other hand, for electric generator the right-hand rule is applicable. The reason why the left-hand rule of Fleming is used in the electric motor because in the electric motor there is the presence of magnetic field and electric current which leads to the force that enables creating the motion. This can be referred to as the effect. Hence, the left-hand rule is used. It thus gives us the direction of the force that works on the current if well aware of the magnetic field.
There is a need for different hands for motors and generators because there is a certain amount of difference between the effect and the cause. To elaborate that, the magnetic field and the electric current creates the force which results in motion and that is why the left hand is used. While the motion and the magnetic field exist in the electric generator and they create the current which is why the right hand is used. The physical basis for the rules that are to be remembered is that the electrons flow in the same direction from where they generate a cylindrical magnetic field that encircles around the conductor.
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
Suman Nehra 5 years, 3 months ago
0Thank You