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Ask QuestionPosted by Nisha Yadav 6 years ago
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Yogita Ingle 6 years ago
- The p-block elements have relatively little in common except that their outer elections are in p orbitals.
- This contrasts with the considerable similarities in properties of the elements of the s-block and also between those of the d-block.
- The p-block is more notable for trends.
- The general electronic configuration of these elements is ns2 np1-6.
- Depending upon the number of valence electrons, the elements of the p-block exhibit variable oxidation states.
Posted by Sakina Mor 6 years ago
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Soumyadeep Paul 6 years ago
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Soumyadeep Paul 6 years ago
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Posted by Prittam Singh 6 years ago
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Yogita Ingle 6 years ago
‘Yoga’ means the individual should be united to or be in communion with the God. Yoga means union, join, yoke, bind, attach or connect. It also means the unification of physical, mental, intellectual and spiritual aspects of human being. The following definitions can be beneficial to understand the meaning of yoga :
“Checking the impulses of mind is Yoga.”
—Patanjali.
“Yoga is attaining the pose.”
—Mahrishi Ved Vyas.
“Yoga is spiritual Kamdhenu.”
— Swami Sampurnanand.
In Bhagwad Gita Lord Krishna said, ‘Skill in actions or efficiency alone is Yoga’. It has given stress on Karma Yoga, the individual should perform his duties well without thinking about its benefits. Yoga is also defined as a state of higher powers and potentialities and even the ultimate state of silence.
Posted by Shinaj Shinu 6 years ago
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Meghna Thapar 5 years, 10 months ago
Bundle of HIS is a collection of heart muscle cells specialized for electrical conduction. As part of the electrical conduction system of the heart, it transmits the electrical impulses from the AV node (located between the atria and the ventricles) to the point of the apex of the fascicular branches via the bundle branches.
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Jeevan Narra 6 years ago
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Posted by Siddharth Shresth 6 years ago
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Yogita Ingle 6 years ago
DISCOVERY OF ELECTRON:
The Electron was discovered by J.J Thomson by conducting a Cathode ray tube experiment.
For the experiment he used Crooke’s tube, which was 60cm long glass tube and had a small tube attached. To this small tube vacuum pump was attached, it also had two metal plates which were connected to battery by wires.
The tube contained gas at atmospheric pressure. when current at high voltage (10,000volts) was passed following observations were made:
- When current was passed through a gas at 1 atmospheric pressure and at a very high voltage, nothing happened. That is no visible effect was seen inside the tube.
- Then further the pressure of gas was reduced by pumping the air out, with the help of vacuum pump. The pressure was reduced to 10-2atm, then on passing current it was seen that whole tube started glowing green.
- Then further the pressure was reduced to 10-4It was seen the whole glow vanished, but it was seen that at the end of the tube (anode side) there was a faint green glow observed.
To confirm the faint glow anode was made perforated, and a zinc sulphide screen (fluorescent material) was placed behind it.
When current was passed under same conditions it also started glowing green. This confirmed that under those conditions some rays were emitted through cathode, and were travelling towards anode. Those rays were called as cathode rays and found to consist of negatively charged particles called electron.
Posted by Rohan Bhagat 6 years ago
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Jeevan Narra 6 years ago
Yogita Ingle 6 years ago
Contra entry is a transaction which involves both cash and bank. Both debit aspect and credit aspect of a transaction get reflected in the cash book. For example:
Cash received from debtors and deposited into bank
Cash withdrawn from bank for office use
Posted by Dev Panwar 6 years ago
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Posted by A.A Aathira 6 years ago
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Yogita Ingle 6 years ago
The Process of Breathing :
Breathing involves the ribs, the intercoastal muscles, lungs and the diaphragm. Breathing process is carried out in two phases :
• Inhalation or Inspiration
• Exhalation or Expiration.
Inhalation : To make inhalation possible the intercoastal muscles contract and lift the ribs upward and outward. The diaphragm muscle also contracts and flattens. These movements increase the size of chest cavity; as a result the pressure inside the lungs decreases. As the pressure outside the lungs is greater and the air moves into the lungs.
Exhalation: When breathing out, the muscles relax, the ribs go back to their normal unexpanded position, and the diaphragm springs back into place. With the chest activity back to its normal size, the pressure inside the lungs increases and is greater than the atmospheric pressure. As a result the air moves out of the lungs through nose or mouth.
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Ani Sonone 6 years ago
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