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Ask QuestionPosted by Varsha Baboria 5 years, 5 months ago
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Yogita Ingle 5 years, 5 months ago
Refrigerators
- It works on principle which is reverse of a heat engine.
- In refrigerators we have 2 bodies lower temperature (cold) body which is freezer and higher temperature (hot) body which is surroundings.
- It takes heat from the cold reservoir and then some work is done on the refrigerator and then the amount of heat is transferred to heat reservoir.
- Let Q2 be the takes from the cold reservoir, W is the work done on the system and then releases Q1 amount of heat to the hot reservoir.
- Mathematically Q2+ W=Q1
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Har Har Mahadev 🙏 5 years, 5 months ago
Posted by Shivani Raturi 5 years, 5 months ago
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Yogita Ingle 5 years, 5 months ago
Flexibility is defined as the range of motion of your joints or the ability of your joints to move freely. It also refers to the mobility of your muscles, which allows for more movement around the joints.
Posted by Ritu Jangra 5 years, 5 months ago
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Yogita Ingle 5 years, 5 months ago
When the narrator's mother was twelve years or so, she along with her cousins went for a sea holiday. Some thirty years later, when the narrator looked at the photo, her mother would remember her past and laugh. For her mother the sea holiday was her past but for the narrator, her laughter.
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Yogita Ingle 5 years, 5 months ago
Following mail services are provided by the post and telegraph department:
(a)UPS (Under Postal Service) : Under it the post office provides a certificate of posting on the payment of prescribed fee.
(b)Registered Post: This facility ensures the sender of the mail that in case the mail is not delivered to the adressee, it comes back to the sender.
©Parcel Post : Under this facility, the parcels of specified size and weight can be sent across the country as well as outside the country on the payment of parcel charges.
(d)Speed Post : Under it, the post & telegraph department guarantees that all the internet mail reveived up to 5 p.m. at the specified post offices will be delivered within 24 hours and if it fails to do so, the extra fee changed will be refunded.
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Yogita Ingle 5 years, 5 months ago
Physical development: Development of organ systems such as circulatory system, nervous system, muscular system, digestive system etc.
Mental development: Physical activities require alertness of mind, deep concentration and calculated movement. This objective is related to the mental development of an individual.
Social development:This objective is related to the development of social traits, which are essential for better adjustment in life. It is a better source for attaining the qualities like. Co-operation, fair play, sportsmanship, tolerance, and sympathy.
Neuro Muscular Co-ordination:This objective is centered with a better relationship between nervous system. Education provides ample opportunities for physical neuromuscular coordination.
Emotional Development: The emotional development of an individual is also one of the major objectives of physical education. Every individual has various types of emotions viz. Pleasure, hope, jealousy, hatredness, fear, depression, anger, wonder, lust, loneliness etc.
Harsh Mittal 5 years, 5 months ago
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Vaishnavi Gupta 5 years, 5 months ago
Yogita Ingle 5 years, 5 months ago
The Romans maintained a paid professional army. The soldiers had to put in a minimum of 25 years of service. The army was the largest single organized body in the empire. Its strength had become 600,000 by the fourth century. The army had the power to determine the fate of the emperors. The success of the emperor depended on his control of the army.
69 BCE was a tumultuous year. Four emperors mounted the throne in quick succession in that year. Other than that, the first two centuries were free from civil war and were relatively stable. Succession to the throne was based on family ascent. A natural or adopted heir could be made the next emperor. Even the army strongly followed this practice.
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Vaishu ? 5 years, 5 months ago
Har Har Mahadev 🙏 5 years, 5 months ago
Posted by Aditi M 5 years, 5 months ago
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Yogita Ingle 5 years, 5 months ago
We asked prominent voices in education—from policy makers and teachers to activists and parents—to look beyond laws, politics, and funding and imagine a utopian system of learning. They went back to the drawing board—and the chalkboard—to build an educational Garden of Eden. We’re publishing their answers to one question each day this week. Responses have been lightly edited for clarity and length.
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Yogita Ingle 5 years, 5 months ago
A computer is an electronic device that can be programmed to accept data (input), process it and generate result (output). A computer along with additional hardware and software together is called a computer system.
Computer = Commonly Operated Machine Particularly Used in Technical and Educational Research
CPU = Central Processing Unit
RAM = Random Access Memory
ROM = Read Only Memory
PROM = Programmable Read Only Memory
EPROM = Erasable PROM
EEPROM = Electrically EPROM
HDD = Hard Disk Drive
FDD = Floppy Disk Drive
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Ff Sedn 5 years, 5 months ago
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Yogita Ingle 5 years, 5 months ago
The DNA structure can be thought of like a twisted ladder. This structure is described as a double-helix, as illustrated in the figure above. It is a nucleic acid, and all nucleic acids are made up of nucleotides. The DNA molecule is composed of units called nucleotides, and each nucleotide is composed of three different components, such as sugar, phosphate groups, and nitrogen bases.
The basic building blocks of DNA are nucleotides, which are composed of a sugar group, a phosphate group, and a nitrogen base. The sugar and phosphate groups link the nucleotides together to form each strand of DNA. Adenine (A), Thymine (T), Guanine (G) and Cytosine (C) are four types of nitrogen bases.
These 4 Nitrogenous bases pair together in the following way: A with T, and C with G. These base pairs are essential for the DNA’s double helix structure, which resembles a twisted ladder.
The order of the nitrogenous bases determines the genetic code or the DNA’s instructions.
Among the three components of DNA structure, sugar is the one which forms the backbone of the DNA molecule. It is also called deoxyribose. The nitrogenous bases of the opposite strands form hydrogen bonds, forming a ladder-like structure.
The DNA molecule consists of 4 nitrogen bases, namely adenine (A), thymine (T), cytosine (C) and Guanine (G) which ultimately forms the structure of a nucleotide. The A and G are purines and the C and T are pyrimidines.
The two strands of DNA run in opposite directions. These strands are held together by the hydrogen bond that is present between the two complementary bases. The strands are helically twisted, where each strand forms a right-handed coil and ten nucleotides make up a single turn.
The pitch of each helix is 3.4 nm. Hence, the distance between two consecutive base pairs (i.e., hydrogen-bonded bases of the opposite strands) is 0.34 nm.
Posted by Ritika Morya 5 years, 5 months ago
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Har Har Mahadev 🙏 5 years, 5 months ago
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Yogita Ingle 5 years, 5 months ago
Enthalpy is the measurement of energy in a thermodynamic system. The quantity of enthalpy equals to the total content of heat of a system, equivalent to the system’s internal energy plus the product of volume and pressure.
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Varsha Baboria 5 years, 5 months ago
1Thank You