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Ask QuestionPosted by ? Ishika ?? 5 years, 7 months ago
- 1 answers
Yogita Ingle 5 years, 7 months ago
(a) Resistance of a wire is directly proportional to the length of a wire; so if the length is doubled, resistance is also doubled.
(b) Resistance of a wire is inversely proportional to the area of cross-section the wire. Thus, if radius is doubled, area increases four times and hence the resistance becomes one-fourth.
Posted by Gunjan Bachani 5 years, 7 months ago
- 1 answers
Yogita Ingle 5 years, 7 months ago
Combination reactions are very much applicable in chemical industry, following are examples:-
- Hydrogen gas and chlorine gas is applied in making hydrochloric acid .
H2 + Cl2 → 2HCl - The rusting of iron can also be categorized as combination reaction .
- Burning of coal : C (Solid) +O2 → CO2
- Discharging of a battery is usually a combination reaction.
Posted by Dharun Kumar S 5 years, 7 months ago
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Posted by Keshar Pundir Rana 5 years, 7 months ago
- 4 answers
D Ivya Goley 5 years, 7 months ago
Gaurav Seth 5 years, 7 months ago
Answer: Oxygen
Explanation:
Oxygen is released during the process of photosynthesis. Photosynthesis is the process in which green plants produce glucose. It involves the conversion of carbon dioxide gas, water, and minerals the plants take in from their surroundings into sugar and gaseous oxygen. Photosynthesis involves the intake of carbon dioxide and the release of oxygen. The release of oxygen is due to photolysis of water in order to fill the gap in the photosystem created by the excitement of electron.
Posted by Keshar Pundir Rana 5 years, 7 months ago
- 1 answers
Yogita Ingle 5 years, 7 months ago
Bile helps to emulsify fats (increasing surface area to help enzyme action), and thus aids in their absorption in the small intestine. It also makes the acidic food coming from the stomach alkaline, so as to enable the action of pancreatic enzymes.
Posted by Mansi Mishra 5 years, 7 months ago
- 1 answers
Gaurav Seth 5 years, 7 months ago
Nutrition is the essential organic nutrients living organisms require for growth, maintenance, reproduction and repair. This is an essential process for theorganism's survival. Living organisms require energy to survive; this energy is derived from nutrients, or food.
Posted by Punit Tiwari 5 years, 7 months ago
- 5 answers
Posted by Sunny Choudhary 5 years, 7 months ago
- 2 answers
Aishani Vyas 5 years, 7 months ago
Punit Tiwari 5 years, 7 months ago
Posted by Syed Irfan 5 years, 7 months ago
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Posted by Annu Singh 5 years, 7 months ago
- 2 answers
Lavya Jain 5 years, 7 months ago
Posted by Aryan Vaidhya 5 years, 7 months ago
- 3 answers
Meghna Thapar 5 years, 7 months ago
The smallest cell is Mycoplasma (PPLO-Pleuro pneumonia like organims). It is about 10 micrometer in size. The smallest type of cell in the world is the mycoplasma bacterium with only a diameter of 10µm (micrometre).
Posted by Panchadev Yadav 5 years, 7 months ago
- 3 answers
Shashant Singh 5 years, 7 months ago
Posted by A . 5 years, 7 months ago
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Meghna Thapar 5 years, 7 months ago
Effective resistance is defined as the resistance to an alternating current, expressed as the ratio of the power dissipated to the square of the effective current. Effective resistance varies with the frequency of the signal. Equivalent resistance is defined to a set of resistors or components having resistance only.
Posted by Anushka ???? 5 years, 7 months ago
- 1 answers
Yogita Ingle 5 years, 7 months ago
|
AEROBIC RESPIRATION |
ANAEROBIC RESPIRATION |
|
1. Also called oxybiotic respiration. |
1. Also called anoxybiotic respiration. |
|
2. Proceeds in the presence of oxygen. |
2. Proceeds in the absence of oxygen. |
|
3. Occurs in mitochondria. |
3. Occurs in cytoplasm. |
|
4. Complete breakdown of glucose. |
4. Incomplete breakdown of glucose. |
|
5. End-products are carbon dioxide and water. |
5. End-products are ethyl alcohol and carbon dioxide. |
|
6. Large quantity of energy is liberated (38 ATP) from one mole of glucose. |
6. Small quantity of energy is liberated (2 ATP) from one mole of glucose. |
|
7. Normally occurs throughout life. |
7. Occurs temporarily for short periods. |
Posted by Shrishail Narasgonde 5 years, 7 months ago
- 1 answers
Yogita Ingle 5 years, 7 months ago
The property of light travelling in a straight line is called rectilinear propagation.
Two natural phenomena based on the property that light travels in straight lines are as follows:
- Lunar Eclipse: This phenomenon occurs when the Earth, the Sun and the Moon are aligned in such a way that the Earth comes between the Sun and the Moon. Light from the Sun cannot reach the Moon and is covered by Earth's shadow.
- Solar Eclipse: This natural phenomenon takes place when the Moon comes in between the Sun and the Earth, blocks the sun rays from reaching the Earth and, covers the Earth with its shadow.
Posted by Ayush Aggarwal 5 years, 7 months ago
- 2 answers
Yogita Ingle 5 years, 7 months ago
Carbohydrates are macronutrients and are one of the three main ways by which our body obtains its energy. They are called carbohydrates as they comprise of carbon, hydrogen, and oxygen at their chemical level. Carbohydrates are essential nutrients which include sugars, fibers, and starches. They are found in grains, vegetables, fruits, and in milk and other dairy products. They are the basic food groups which play an important role in a healthy life.
Posted by Nitin Ojha 5 years, 7 months ago
- 1 answers
Meghna Thapar 5 years, 7 months ago
Aluminium and zinc react with moist air to form a thin protective layer of oxide on their surfaces. This Iayer prevents further corrosion of the metals. Aluminum unlike iron and steel,does not rust or corrode in moist conditions. Its surface is protected by a natural layer of aluminium oxide. This prevents the metal below from coming into contact with air and oxygen.
Posted by Tiksha Gupta 5 years, 7 months ago
- 1 answers
Yogita Ingle 5 years, 7 months ago
Chalk is nothing but calcium carbonate.
Its chemical formula is CaCO3.
Posted by Tuahar Agarwal 5 years, 7 months ago
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Varshini Rm 5 years, 7 months ago
Posted by Vijay Pal 5 years, 7 months ago
- 1 answers
Yogita Ingle 5 years, 7 months ago
A woman can get pregnant all the while she is menstruating, but her fertility starts declining at the age of 32 and this process fastens as she reached the age of 37. Teenage is the time when a woman is most fertile, which makes teenage, biologically the best age to get pregnant.
Posted by Vijay Pal 5 years, 7 months ago
- 3 answers
Yogita Ingle 5 years, 7 months ago
Ethylene is the only gaseous natural plant hormone. It is produced in large amounts by tissues undergoing senescence and ripening fruits.
Posted by Khushi Sharma 5 years, 7 months ago
- 1 answers
Yogita Ingle 5 years, 7 months ago
A chemical change occurs when one or more substances change into other materials. A chemical reaction involves the formation of new substances with different properties. For example, hydrogen and oxygen react to form water
Posted by Khushi Sharma 5 years, 7 months ago
- 3 answers
Vijay Pal 5 years, 7 months ago
Vijay Pal 5 years, 7 months ago
Swayamshree Rout 5 years, 7 months ago
Posted by Vijay Pal 5 years, 7 months ago
- 0 answers
Posted by Vijay Pal 5 years, 7 months ago
- 1 answers
Meghna Thapar 5 years, 5 months ago
Object distance (u), image distance (v) and focal length (f) of a spherical lens are related as:
1/v – 1/u = 1/f.
The formula is a relation between the object distance u, image distance v and the focal length from the pole of the concave mirror. The formula is valid for the images in a convex mirror and even for the images in the lens.
We consider the image formed by a concave mirror whose focal length is f and whose radius of curvature is r = 2f.
Let P be the pole of the concave mirror. Let P, F , C be the pole, focal point, and centre of curvature along the principal axis. So, PC = 2PF , as r = 2f.
Posted by Rohan Singh 5 years, 7 months ago
- 1 answers
Yogita Ingle 5 years, 7 months ago
Following are the factors on which lateral displacement depends:
- The thickness of the glass slab
- Refractive index of the glass slab
- The angle at which incident ray enters the glass slab
Posted by Kavya Kaushik 5 years, 7 months ago
- 3 answers
Gaurav Seth 5 years, 7 months ago
- Resistivity is the physical property of a particular substance which is having particular dimensions.
- Resistivity is only proportional to the nature and temperature of the particular material.
- ρ = (R×A)/L
R = Resistance, L= Length, A = Cross-sectional area
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The SI unit of resistivity is Ohms-meter.
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Electrical resistivity measurement is used as a quality control test for calcareous soil.
Study ? 5 years, 7 months ago
Posted by Tanishk Kalyan 5 years, 7 months ago
- 1 answers
Gaurav Seth 5 years, 7 months ago
Artificial Ecosystem: these are the ecosystems which are created and maintained by man, by addition of energy and planned manipulation with natural balance.
for e.g
Corp lands such as sugar cane, maize, wheat, rice fields, orchards, gardens aquariums, greenhouses etc.
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