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Cytoplasmic genes could be defined as DNA present inside the bodies in the cell which are present external to the nucleus. While, nuclear gene is gene which is located inside the nucleus of the cell.
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- Robert Hooke was the scientist who gave Hooke’s law.
- Hooke’s law states that within the elastic limit, stress developed is directly proportional to the strain produced in a body.
- Consider a scenario where we apply external force to the body. As a result stress develops in the body due to this stress there will be a strain produced in the body which implies that there will be some deformation in the body.
- Because of stress, strain is produced.
- According to Hooke’s law, if strain increases the stress will increase and vice-versa.
- The Hooke’s law is applicable to all elastic substances.
- It does not apply to plastic deformation.
- Mathematically :
- stress ∝ strain
- stress = k × strain
- Where k is the proportionality constant and is known as modulus of elasticity.
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Reducing agent: A reducing agent is an element that loses electrons. The reducing agent means to lose electrons; it is said to have been oxidized.
The element which undergoes oxidation (gets oxidized) is called reducing agent.
For example:
4NH3 + 5O2→ 4NO + 6H2O
Posted by Md Fardeen 6 years, 2 months ago
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Yogita Ingle 6 years, 2 months ago
- s block elements have spherical s orbital as their outermost orbital.
- Since s orbital can accommodate a maximum of 2 electrons, each one of these elements have 1 or two electrons.
- These s electrons are lost very easily to form monopositive ions by lsoing one electron in the outermost orbital or dipositive ions by losing 2 electrons.
- They have low ionisation potentials and low electronegativities.
- They are good conductors of heat and electricity, excepting H2 and He.
- They are silvery, shiny metallic substances, (with the exception of hydrogen and helium which gaseous nonmetals).
- They are malleable and ductile, i.e., we can make sheets and wires from them, (exception: H2, He)
- They readily form ionic salts with most nonmetals.
- Aqueous solutions of their oxides are alkaline.
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Here we Go...
Q. संचार किसे कहते हैं ?
उत्तर :- ‘संचार’ शब्द चर् धातु के साथ सम् उपसर्ग जोड़ने से बना है- इसका अर्थ है चलना या एक स्थान से दूसरे स्थान तक पहुँचना |संचार संदेशों का आदान-प्रदान है | सूचनाओं, विचारों और भावनाओं का लिखित, मौखिक या दृश्य-श्रव्य माध्यमों के जरिये सफ़लता पूर्वक आदान-प्रदान करना या एक जगह से दूसरी जगह पहुँचाना संचार है।
For more Information, You'n search it at Internet Too!!!
Posted by Mayank Yadav 6 years, 2 months ago
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Sia ? 6 years, 2 months ago
An equation that defines the physical state of a homogeneous gas, is a modification of the ideal-gas equation, and more nearly describes the properties of actual gases: (p + (a/v2)) (v−b)=RT where p is the pressure, v the specific volume, R the gas constant, T the absolute temperature, and a and b are constants .
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Ritik Dahiya 6 years, 2 months ago
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