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Nandana Rakesh 5 years, 4 months ago
Yogita Ingle 5 years, 4 months ago
This type of motion is defined as the motion of an object in which the object travels in a straight line and its velocity remains constant along that line as it covers equal distances in equal intervals of time, irrespective of the duration of the time.
Posted by Suman Suman 5 years, 4 months ago
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Narra Nikhil 5 years, 4 months ago
Yogita Ingle 5 years, 4 months ago
Concave lens:
1) It has both surfaces curving inwards.
2) It is thicker at edges and thinner at middle.
3) It diverges the light coming towards it.
4) Its focal length is negative.
5) It always produces a virtual image.
Convex lens:
1) It has both surfaces curving outwards.
2) It is thicker at middle and thinner at the edges.
3) It converges the light coming towards it.
4) Its focal length is positive.
5) It always produces a real image and forms a virtual image only when the object is between the focus and optical centre.
Swati Garg 5 years, 4 months ago
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Aarya Vyawahare 5 years, 4 months ago
Isha Gulati 5 years, 4 months ago
?Sooraj Martin? 5 years, 4 months ago
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Anshika Kashyap 5 years, 4 months ago
Swati Garg 5 years, 4 months ago
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?Sooraj Martin? 5 years, 4 months ago
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Gaurav Seth 5 years, 4 months ago
A n s w e r:
The children are very kind- hearted. They cared for the beggar. This shows us that they were compassionate. This incident also emphasizes the fact that humanity still exists..
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Narra Nikhil 5 years, 4 months ago
Gaurav Seth 5 years, 4 months ago
| Clinical thermometer is scaled from 35°C to 42°C or from 94°F to 108°F. | Laboratory thermometer is generally scaled from -10°C to 110°C. |
| Mercury level does not fall on its own, as there is a kink near the bulb to prevent the fall of mercury level. | Mercury level falls on its own as no kink is present. |
| Temperature can be read after removing the thermometer from armpit or mouth. | Temperature is read while keeping the thermometer in the source of temperature, e.g. a liquid or any other thing. |
| To lower the mercury level jerks are given. | No need to give jerk to lower the mercury level. |
| It is used for taking the body temperature. | It is used to take temperature in laboratory. |
Similarities:
- Both are made of glass tube.
- Both are filled with mercury.
- Both are generally graduated on Celsius scale.
Posted by Nishmal.P Musthafa 5 years, 4 months ago
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Posted by Yayashva 7A 5 years, 4 months ago
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Posted by Vinayak Sharma 5 years, 4 months ago
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Gaurav Seth 5 years, 4 months ago
A n s w e r :
Step- by - step explanation:
Given :
Find ratio of 1 crore to 1 million
1 crore = 1,00,00,000
1 million = 1,000,000
Finding the ratio :-
1,00,00,000/1,000,000 = 10: 1
Hence, Required answer is 10 : 1
Posted by ?Sooraj Martin? 5 years, 4 months ago
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Gaurav Seth 5 years, 4 months ago
Pink
Phenolphthalein is often used as an indicator in acid–base titrations. For this application, it turns colorless in acidic solutions and pink in basic solutions.
Phenolphthalein is a chemical compound with the formula C20H14O4
Posted by Prashant Mishra 5 years, 4 months ago
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Gaurav Seth 5 years, 4 months ago
1. Water
On dissolving the ash in water it forms a new substance. This change can be written in the form of the following equation: Magnesium oxide (MgO) + Water (H2O) → Magnesium hydroxide [Mg(OH)2 ]
2. Magnesium hydroxide
On dissolving the ash in water it forms a new substance. This change can be written in the form of the following equation: Magnesium oxide (MgO) + Water (H2O) → Magnesium hydroxide [Mg(OH)2 ]
3. Copper sulphate
The brown deposit on the iron nail is copper, another new substance. We can write the reaction as: Copper sulphate solution (blue) + Iron → Iron sulphate solution (green) + Copper (brown deposit)
4. Vinegar (Acetic acid) + Baking soda (Sodium hydrogencarbonate) → Carbon dioxide + other substances
5. Iron
The process of rusting can be represented by the following equation: Iron (Fe) + Oxygen (O2 , from the air) + water (H2O) → rust (iron oxide Fe2O3 )
6. rust
The process of rusting can be represented by the following equation: Iron (Fe) + Oxygen (O2 , from the air) + water (H2O) → rust (iron oxide Fe2O3 )
Posted by ?Sooraj Martin? 5 years, 4 months ago
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Gaurav Seth 5 years, 4 months ago
Yellow
Methyl orange is a pH indicator frequently used in titration because of its clear and distinct color variance at different pH values. Methyl orange shows red color in acidic medium and yellow color in basic medium.
Posted by ?Sooraj Martin? 5 years, 4 months ago
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Gaurav Seth 5 years, 4 months ago
- Salts are ionic in nature due to the presence of ions.
- They are brittle, hard and crystalline solids.
- Salt is white, odorless and it has a salty taste.
- Salt water is a good conductor of electricity.
Posted by ?Sooraj Martin? 5 years, 4 months ago
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Gaurav Seth 5 years, 4 months ago
The reaction between an acid and a base to give a salt and water is known as a neutralisation reaction. Acids and bases react with each other to nullify the effect of each other. Let us consider a simple reaction. Take a sample of NaOH which is a base and add drops of dilute HCl.
The reaction will be as follows:
Therefore while suffering from acidity it is prescribed to take antacid which are bitter in taste i.e. they are base. And on entering the body the base neutralise the excess acid released into the stomach and convert it into salt and water.
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Swati Garg 5 years, 4 months ago
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Yogita Ingle 5 years, 4 months ago
Parasite: A plant or an animal organism that lives in or on another and takes its nourishment from that other organism. Parasitic diseases include infections that are due to protozoa, helminths, or arthropods. For example, malaria is caused by Plasmodium, a parasitic protozoa.
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