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Ask QuestionPosted by Kalikota Sahith Patel 7 years, 4 months ago
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Manya Chawla 7 years, 4 months ago
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Somi Raj Singh 7 years, 4 months ago
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Yogita Ingle 7 years, 3 months ago
Take a copper sulphate solution in a beaker . Connect an iron nail that to be electroplated to the negative terminal of a battery . Connect a copper strip to the positive terminal of the battery . Dip the copper strip and object to electroplated in the beaker containing copper sulphate solution .Leave the set up for half an hour . you will can deposit of reddish broun coating on the object .
When electricity is passed through the solution , copper ions move towards the cathode and get reduced to copper metal . This metal gets electroplated on the object .
Posted by Sachkirat Singh 7 years, 4 months ago
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Meghna Thapar 5 years, 7 months ago
Gallium is the Backbone of the Electronics Industry. Gallium is a silvery blue and soft metallic element that enjoys vast application in optoelectronics (e.g., LED's), telecommunication, aerospace, and many commercial and household items such as alloys, computers and DVD's.
Posted by Kartikay Gupta 7 years, 4 months ago
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Roshan Raj 7 years, 4 months ago
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Yogita Ingle 7 years, 4 months ago
(i) White blood cells (WBCs): The white blood cells present in our blood can change their shape. This helps them to kill germs by engulfing them.
(ii) Amoeba: Amoeba can change its shape with the help of pseudopodia that are projections of its body. The pseudopodia help the Amoeba to capture its food and move from one place to another.
Posted by Riya Yadav 7 years, 4 months ago
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Renuka Seiwal 7 years, 3 months ago
It got lubricant in hanging,it easily move and no noise will produce.
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Manya Chawla 7 years, 4 months ago
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Divya Saini 7 years, 4 months ago
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Meghna Thapar 5 years, 7 months ago
Oligonucleotides are used as probes for detecting specific sequences that are complementary to the oligonucleotides. When a certain sequence needs to be detected, a complementary oligonucleotide is synthesized in the laboratory. Oligonucleotides readily bind, in a sequence-specific manner, to their respective complementary oligonucleotides, DNA, or RNA to form duplexes or, less often, hybrids of a higher order. This basic property serves as a foundation for the use of oligonucleotides as probes for detecting specific sequences of DNA or RNA.
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Rudra Shukla 7 years, 4 months ago
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Posted by Saurav Katare 7 years, 4 months ago
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Yogita Ingle 7 years, 4 months ago
- Contact Force: Contact force is a force which can produce its effect only by making a contact with object. Following are the contact forces:
Muscular Force: It is the force applied by muscles of humans or animals. A bullock is able to pull a cart because of muscular force. The bullock needs to be harnessed to the cart for applying the force.
- Friction: When one surface is moving over another surface, a force comes into play and opposes their relative motion. This force is called friction or force of friction. Friction always opposes motion because it acts in opposite direction to motion. Force of friction arises due to contact between two surfaces. If there is no contact between two surfaces there would be no friction.
- Non-contact Force: The non-contact force is a force which can produce its effect without making a contact with object. Following are the non-contact forces:
- Magnetic Force: The force applied by a magnet is called magnetic force. A magnet can exert its force on an object even from a distance and does not need to touch that object.
- Electrostatic Force: It is the force applied by a charged body on another charged or non-charged body. When you brush a comb in your hairs and then bring the comb near small bits of paper, the comb attracts the bits of paper. This happens because of electrostatic force.
- Gravitational Force: Every object in the universe exerts a force on another object. This force is called gravitational force. It is the gravitational force of various celestial bodies which keeps them in their position in the space.
Posted by Jayachandran Kb 7 years, 4 months ago
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Yogita Ingle 7 years, 4 months ago
The bob of a pendulum moves to and fro along the same path and passes through the mean position. This type of motion is called oscillatory motion. The maximum displacement of a pendulum, that is, the displacement between the mean position and the extreme position, is called its amplitude. The time taken by an oscillating pendulum to make one complete oscillation is called its time period.
Posted by Meraj Siddique 7 years, 4 months ago
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Yogita Ingle 7 years, 4 months ago
Muscular force is the force applied using parts of the body like arms or legs. It is force that results due to the action of muscles, and is a contact force, since there is a contact between the surfaces. Muscular force is needed whenever movement of the body occurs. Walking, lifting, getting up from a chair, crossing a leg, etc. all require muscular force.
Posted by Bhim Joshi 7 years, 4 months ago
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Gaurav Kumar 7 years, 4 months ago
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Sonali Aggarwal 7 years, 4 months ago
Endemic species are unique to a defined geographic location, such as an island, nation, country or other defined zone, or habitat type; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere.
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