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U is always taken as negative ; V is taken positive if image is formed inside the mirror while it is taken negative if the image is formed in front of the mirror ; f is positive for convex mirror and negative for concave mirror.

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What are the function of all parts of human heart

Posted by Nitya Ranout 4 years, 3 months ago

CBSE > Class 10 > Science

0 answers

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Difference between plane mirror and spherical mirror

Posted by Aarav Tiwari 4 years, 3 months ago

CBSE > Class 10 > Science

1 answers

Sia ? 4 years, 3 months ago

A plane mirror is just a smooth, mirrored surface that is completely flat. This makes the image clear and undistorted. A spherical mirror is a mirror that has a consistent curve and constant radius of curvature - a sphere-shaped mirror.

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Environment ch 15 notes

Posted by Parisathkiru Sathkiru 4 years, 3 months ago

CBSE > Class 10 > Science

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On what factors does the magnetic of magnetic field produced by a straight current carrying wire depend upon

Posted by Bani Debbarma 4 years, 3 months ago

CBSE > Class 10 > Science

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Differentiate by nutrition

Posted by Minu Dalei 4 years, 3 months ago

CBSE > Class 10 > Science

1 answers

Riya Singh 4 years, 3 months ago

A process of taking a source of energy from outside the body of the organism which we call food , to the inside is called nutrition ??

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Why does calcium ( Ca) and magnesium (mg) swim in water ?

Posted by Riya Singh 4 years, 3 months ago

CBSE > Class 10 > Science

1 answers

Aniket Chauhan 4 years, 3 months ago

Calcium reacts with cold water to form calcium hydroxide and hydrogen gas. Heat produced is so less in which is not enough to burn hydrogen gas. The calcium metal floats on water because the bubbles of Hydrogen gas formed during reaction and increase the volume of the element and stick to its surface. Magnesium metal reacts with hot water to form magnesium hydroxide and hydrogen gas. The magnesium metal floats on water because the bubbles of Hydrogen gas formed during reaction and increase the volume of the element and stick to its surface. so,because of the evolution of hydrogen gas that occurs by the formation of bubbles Ca and Mg floats on water.

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Explain two types of respiration with example

Posted by Subham Mishra 4 years, 3 months ago

CBSE > Class 10 > Science

3 answers

Dikshit Gupta 4 years, 3 months ago

Aerobic- It is a type of respiration that occurs in the presence of oxygen. Anaerobic- It is a type of respiration that occurs when there is insufficient or no supply of oxygen. It forms lactic acid and also causes cramps

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Sia ? 4 years, 3 months ago

External respiration is the breathing process. It involves inhalation and exhalation of gases. Internal respiration involves gas exchange between the blood and body cells. Cellular respiration involves the conversion of food to energy.

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Piyush Mishra Ji 4 years, 3 months ago

Aerobic and anaerobic respiration

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Defferentiate between rancidity and corrosion with there formula

Posted by Tasneem Raziya 4 years, 3 months ago

CBSE > Class 10 > Science

2 answers

Sia ? 4 years, 3 months ago

Rancidity is defined as the slow oxidation of oils and fats preset in food materials resulting in some bad smelling compounds. corrosion is basically when the surface of a metal gets eat up. but in case of iron it is know as rusting . rancidity is when the food gets oxidised and a foul smell start coming from it .

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Ritika Aggarwal 4 years, 3 months ago

Corrosion- Rusting of iron. Rancidity- Oxidation of oils and fats present in food.

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Why different person have different blood group even they have same blood in colour?

Posted by Ur Kumar Ranjan 4 years, 3 months ago

CBSE > Class 10 > Science

2 answers

Vinod Khandelwal 4 years, 3 months ago

depends on antigens on red cell it has A so blood type is also A and red cells having antigen B so blood type is B colour is same but antigens differ

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Abhishek Pillai 4 years, 3 months ago

3×10⁸m/s

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What is speed of light

Posted by Yukti Agrawal 4 years, 3 months ago

CBSE > Class 10 > Science

4 answers

Amisha Kushwaha 4 years, 3 months ago

3 *10'8 m / sec

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Aniket Chauhan 4 years, 3 months ago

3×10⁸ m/ sec

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Akshat Holland Minettee 4 years, 3 months ago

3×10^8 m/s

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Ur Kumar Ranjan 4 years, 3 months ago

3*10^8 m/sec

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How do we get muscle cramps after doing vigorous activities

Posted by Sangeetha Vanashri 4 years, 3 months ago

CBSE > Class 10 > Science

4 answers

Dikshit Gupta 4 years, 3 months ago

When we do various activities for a longer time it leads to lack of oxygen(ANAEROBIC RESPIRATION), ultimately leading to formation of lactic acid. Thus, muscle cramps occur

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Sweta Jha 4 years, 3 months ago

Due to accumulation of lactic acid in muscles

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Disha Goyal 4 years, 3 months ago

Lactic acid built up in our muscles due to lack kf co2

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Preksha Gr 4 years, 3 months ago

This is due to the latic acid present in our muscles when we do sudden activities we get muscle cramps

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Whay is the conventional direction of folw of current

Posted by Fidha T. S Subair 4 years, 3 months ago

CBSE > Class 10 > Science

2 answers

Fidha T. S Subair 4 years, 3 months ago

Thankyou

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Rishi Kumar Sharma 4 years, 3 months ago

The flow of electrons is termed electron current. Electrons flow from the negative terminal to the positive. Conventional current or simply current, behaves as if positive charge carriers cause current flow. Conventional current flows from the positive terminal to the negative.

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Draw the diagram of phloem

Posted by Kani Mivi 4 years, 3 months ago

CBSE > Class 10 > Science

1 answers

Preksha Gr 4 years, 3 months ago

It is the process of taking oxygen for breaking down of food

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What is resperation

Posted by Kani Mivi 4 years, 3 months ago

CBSE > Class 10 > Science

1 answers

Saurabh Jha 4 years, 3 months ago

THE PROCESS OF OBTAINING ENERGY FROM THE DIGESTED FOOD IS CALLED RESPIRATION.

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What is the chemical formula of rancidity

Posted by Tasneem Raziya 4 years, 3 months ago

CBSE > Class 10 > Science

3 answers

Tasneem Raziya 4 years, 3 months ago

Kyun nhi hits hai?

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Preksha Gr 4 years, 3 months ago

There is no Chemical process for rancidity its just a process

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Tanushree Gupta 4 years, 3 months ago

Hota nhi h

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What is one watt

Posted by Nousheen Naaz 4 years, 3 months ago

CBSE > Class 10 > Science

2 answers

Vicky Kumar Chaurasiya 4 years, 3 months ago

1 Watt of electric power is consume when 1A of current flow in a circuit having 1Volt of potential difference across the circuit.

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Chetana Patil 4 years, 3 months ago

If a body does one joule of work in one second than its power is considered to be of one watt

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Potassium and sodium ko oil me khu rakha jata hai ?

Posted by Riya Singh 4 years, 3 months ago

CBSE > Class 10 > Science

4 answers

Aniket Chauhan 4 years, 3 months ago

Because they both are highly reactive when come to contact with water and air then they start reacting with it.

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Trailokya Tripathy 4 years, 3 months ago

They are both really reactive metals which react vigorously in the air . Simple bhasha mai taki lab mai hadsa naa ho jaye isliye potassium aur sodium ko oil mai rakha jata hai

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Account Deleted 4 years, 3 months ago

As they both are highly reactive metal which when come in contact with air and water start reacting with it

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Nikhil Choudhary 4 years, 3 months ago

potassium and sodium highly reactive metal with contact of air and water ...so that's why kept in oil to avoid accident..

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What is Potential different

Posted by Vishesh Choudhary 4 years, 3 months ago

CBSE > Class 10 > Science

3 answers

Aditya Chourasiya 4 years, 3 months ago

Like water only flow in tube if there is difference at the two ends of tube i.g.higher region to lower region similarly electrons can only flow if there is potential difference...

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Md Aftab Alam 4 years, 3 months ago

The potential difference between the two point in an electric circuit can be defined as the amount of work done to bring a unit charge from one point to the other.

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Vishesh Choudhary 4 years, 3 months ago

Electric current flows from high potential to law potential is called potential different

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Which enzyme does pancreas secreate

Posted by Ishika Kasana 4 years, 3 months ago

CBSE > Class 10 > Science

3 answers

Sia ? 4 years, 3 months ago

The pancreas contains exocrine glands that produce enzymes important to digestion. These enzymes include trypsin and chymotrypsin to digest proteins; amylase for the digestion of carbohydrates; and lipase to break down fats.

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Dali Sahu 4 years, 3 months ago

Trypsin and lipase

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Preksha Gr 4 years, 3 months ago

Trypsin and lipase

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In how much time does the digestion complete

Posted by Bhavna Suthar 4 years, 3 months ago

CBSE > Class 10 > Science

5 answers

Dali Sahu 4 years, 3 months ago

3 to 4 hours

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Dolly Singhania 4 years, 3 months ago

Six to eight hours!!

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Anmol Preet 4 years, 3 months ago

After you eat, it takes about six to eight hours for food to pass through your stomach and small intestine. Food then enters your large intestine (colon) for further digestion, absorption of water and, finally, elimination of undigested food. It takes about 36 hours for food to move through the entire colon.

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Vinod Khandelwal 4 years, 3 months ago

3 to 5 day

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Shrishti Singh ? 4 years, 3 months ago

The food is completely digested in 2 to 5 days depending upon individual

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Can a displacement reaction be a exothermic reaction?

Posted by Harshit Singh 4 years, 3 months ago

CBSE > Class 10 > Science