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Ask QuestionPosted by Divya Dharshini 7 years, 3 months ago
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Posted by Mahesh Singh 7 years, 3 months ago
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Yogita Ingle 7 years, 3 months ago
The diagonal of a cuboid is given by the formula:
D = √l2 + b2 + h2
Where l = length, b= breadth and h = height
Posted by Arpita Kumari 7 years, 3 months ago
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Yogita Ingle 7 years, 3 months ago
Types of Microorganisms
- Bacteria: Bacteria are microscopic organisms which have cell walls but do not have nucleus. Some bacteria are autotrophs but most are heterotrophs. Bacteria are found in different shapes; like rod-shaped, spiral, spherical and comma-shaped. Examples: Rhizobium, E. coli, Pseudomonas, Streptococcus, etc.
- Algae: Algae are green plants which are simple in structure. A cell of algae contains cell wall and chloroplast. Algae are autotrophs. Some algae are microscopic. Examples: Chlamydomonas, Spirogyra, etc.
- Fungi: Fungi have cell wall and nucleus in their cells but do not have chloroplast. Fungi are saprotrophs, i.e. they feed on dead remains of plants and animals. Almost all fungi are microscopic, except mushrooms. Examples: yeast, Rhizopus (bread mould), Aspergillus, Penicillium, etc.
- Protozoa: Protozoa do not have cell wall and chloroplast but they do have nucleus. Amoeba and Plasmodium are examples of protozoa.
Posted by Shubham Yadav 5 years, 8 months ago
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Posted by K P 7 years, 3 months ago
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Yogita Ingle 7 years, 3 months ago
Inter-community domination is the domination of one community over the other, whereas Intra-community domination is the domination of one section of community over the others section of same community.
Posted by Honey Meena 7 years, 3 months ago
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Posted by Sachkirat Singh 7 years, 3 months ago
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Yogita Ingle 7 years, 3 months ago

So here we can see that 99999 is not a perfect square as it leaves 143 as the remainder while finding it s square root.
So for finding 5 digit perfect square we will have to subtract 143 from 99999
=> 99999-143 = 99856
Hence 99856 is a perfect square whose square root is √99856 = 316.
Posted by Dev Brat 7 years, 3 months ago
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Yogita Ingle 7 years, 3 months ago
There are two main types of forces, viz. contact force and non-contact force.
- 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 Dev Brat 7 years, 3 months ago
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Yogita Ingle 7 years, 3 months ago
PET is a abbreviation of the synthetic polymer called Poly Ethylene Terephthalate. PET can be made into a fibre or plastic. PET as a plastic is very lightweight. It is naturally colourless with high transparency. PET is strong and impact-resistant. It is used for making bottles,jars and utensils.
Posted by Amit Kumar 7 years, 3 months ago
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Yogita Ingle 7 years, 3 months ago
A mitochondrion is a membrane bound organelle found in eukaryotic cells. This organelle generates the cell's supply of chemical energy by releasing energy stored in molecules from food and using it to produce ATP (adenosine triphosphate). ATP is a special type of "energy carrying" molecule.
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Yogita Ingle 7 years, 3 months ago
Refractive Index
(i) Refractive index of a medium is that characteristic which decides speed of light in it.
(ii) It is a scalar, unit less and dimensionless quantity.
(iii) Absolute refractive index : When light travels from vacuum to any transparent medium then refractive index of medium w.r.t. vacuum is called it's absolute refractive index i.e. vacuumµmedium = c/v
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Divya Dharshini 6 years, 11 months ago
1Thank You