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Why don't plants twinkle?

Posted by Rajeev Singh 3 years, 5 months ago

CBSE > Class 10 > Science

5 answers

Lieutenant Anshika Gupta 3 years, 5 months ago

Aur ha bhai planet ki spelling sahi likh lo.

0Thank You

Lieutenant Anshika Gupta 3 years, 5 months ago

Planets are very close to the earth so they appears big and they do not act like a point source they act like a collection of point source so their net intensity do not changes and hence planets do not twinkle.

1Thank You

Priya Kumari 3 years, 5 months ago

Because of atmospheric refraction

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Balaji Gunja 3 years, 5 months ago

Send me important question and questions to be answered to score good marks in class 10

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Balaji Gunja 3 years, 5 months ago

Hlo

2Thank You

ANSWER

Explain transportation of food and water in plants.

Posted by Tvesa Makwana 3 years, 5 months ago

CBSE > Class 10 > Science

2 answers

Shrishty Rathore 3 years, 5 months ago

Plants transport system moves energy stored in leaves and from roots (raw material) to all parts of plants. There are two pathways constructed as conductive tubes - Xylem and Phloem Xylem - It moves water and minerals obtained from the root to leaves of plants. It consists of trachieds and vessels Phloem- It transport products of photosynthesis from the leaves to roots and storage parts of plant. It consists of sieve tubes and companion cells.

1Thank You

Mohd Shahnawaz 3 years, 5 months ago

Hii

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ANSWER

Which chromosome present in others

Posted by Danshika Raaval 3 years, 5 months ago

CBSE > Class 10 > Science

1 answers

Rewati Raman 🤓🤓🤓 3 years, 5 months ago

Photosynthesis

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ANSWER

Why direction of current is opposite to the direction of electrons ?

Posted by Riya Asware 3 years, 5 months ago

CBSE > Class 10 > Science

2 answers

👌Aditya 👌 👌Kumar👌 3 years, 5 months ago

Conventionally

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Rk Hindustani 3 years, 5 months ago

The direction of flow of conventional electric current is considered towards the direction of flow of positive charges. The relative direction of flow of positive charges is opposite to the direction of flow of electrons. That is why....

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ANSWER

What is home sapiens

Posted by Aman Raj 3 years, 5 months ago

CBSE > Class 10 > Science

4 answers

Vanshika Choudhary 3 years, 5 months ago

Scientific name of human being

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Lieutenant Anshika Gupta 3 years, 5 months ago

Scientific name of human being.

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Anushka Verma 3 years, 5 months ago

Homosapiens is the scientific name of the human beings

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Aman Raj 3 years, 5 months ago

Human name

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ANSWER

Explain double circulation through heart

Posted by Siddharth Shreshtha 3 years, 5 months ago

CBSE > Class 10 > Science

1 answers

Kumar Gaurav 3 years, 5 months ago

1] SYSTEMIC CIRCULATION:- When blood flows from heart through aorta to rest part of the body and then again flows back to heart through venacavas, this is termed as Systemic Circulation. 2] PULMONARY CIRCULATION:- When blood flows from heart through pulmonary artery to the lungs and then again back to heart through pulmonary vein, this is known as pulmonary circulation.

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ANSWER

What is the scientific name of human beings?

Posted by Diksha Chettri 3 years, 5 months ago

CBSE > Class 10 > Science

5 answers

Aman Raj 3 years, 5 months ago

Homo sapiens

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Madhu Singh 3 years, 5 months ago

Homo sapiens

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Anmol S 3 years, 5 months ago

Homo sapiens

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Vishnu Priyan 3 years, 5 months ago

Any questions

1Thank You

Vishnu Priyan 3 years, 5 months ago

The scientific name of human beings is Homo sapiens

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ANSWER

A ray of light on passing through centre of curvature retraces its path . Explain.

Posted by Parneet Kaur 3 years, 5 months ago

CBSE > Class 10 > Science

4 answers

Rk Hindustani 3 years, 5 months ago

The radius of a circle is perpendicular to the tangent drawn at the circumference of the circle. In case of light ray passing through the centre of curvature or along the radius, it falls perpendicular to the curvature of the mirror, hence angle of incidence becomes 0° and as per the first law of reflection, angle of reflection also becomes 0°. In this way the light ray retraces it's original path.

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Madhu Singh 3 years, 5 months ago

A ray of light on passing through centre of curvature ,after striking it will be move parallel

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Vishnu Priyan 3 years, 5 months ago

As the ray of light passes through the centre of curvature of a mirror it strikes the mirror along the normal, i.e. it incidences on to the mirror at 90 degrees

1Thank You

Akansha Negi 3 years, 5 months ago

After striking on the surface it will move parallel.

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ANSWER

PH scale every day life use

Posted by Sanskriti Raghuwanshi 3 years, 5 months ago

CBSE > Class 10 > Science

2 answers

Preeti Potai 3 years, 5 months ago

Our body works within the pH range of 7.0 to 7.8 living organisms can survive only in a narrow range of pH change 👍

2Thank You

Vishnu Priyan 3 years, 5 months ago

Ok😄

2Thank You

ANSWER

A ray of light travelling in glass emerges into air. State whether it will be bend towards the normal or away from the normal.

Posted by 𝕷𝖊𝖌𝖊𝖓𝖉 🏆 🍑 🎀 𝒜𝓁☯𝓃𝑒 𝑅𝒶𝓈𝒽𝒾 🎀 🍑 3 years, 5 months ago

CBSE > Class 10 > Science

5 answers

Riya Kashyap 3 years, 5 months ago

It bend away from normal

1Thank You

Madhu Singh 3 years, 5 months ago

It will bend away from normal

1Thank You

Simran Rajput 3 years, 5 months ago

It will bend away from the normal

1Thank You

Vaibhav Kaushik 3 years, 5 months ago

Normal

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𝕷𝖊𝖌𝖊𝖓𝖉 🏆 🍑 🎀 𝒜𝓁☯𝓃𝑒 𝑅𝒶𝓈𝒽𝒾 🎀 🍑 3 years, 5 months ago

I will wait for your reply...!!

4Thank You

ANSWER

Unknown resistance X is joined parallel to a resistance of 20. To this combination a battery of 2 volt and resistance of 10 are joined in series. If the current passing through X is 0.05 A, find the value of X. (Ans: 20 )

Posted by Aditi Saini 3 years, 5 months ago

CBSE > Class 10 > Science

1 answers

Madhu Singh 3 years, 5 months ago

Current through the battery is 1.25 ampere

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ANSWER

Special details of liver, pancreas, and lungs

Posted by Aryan Kumar 3 years, 5 months ago

CBSE > Class 10 > Science

2 answers

Aryan Kumar 3 years, 5 months ago

Give some more points

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Karan Kachare Patil 3 years, 5 months ago

Liver- in liver bile juice is present which help for the digestion. Pancreas- pancreas secret the pancrese for digestion process. Lungs - lungs are used for respiration or breathing process

3Thank You

ANSWER

Apparent

Posted by Ashutosh Tiwari 1729 3 years, 5 months ago

CBSE > Class 10 > Science

1 answers

Disha Mahintamani 3 years, 5 months ago

Imagination ou illusion

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ANSWER

A convex lens forms a real and inverted image of a needle at a distance of 50 cm from the lenses where is the needle place in front of convex lens so that the image is of the same size of the object

Posted by Simran Deepkaur 3 years, 5 months ago

CBSE > Class 10 > Science

2 answers

Madhu Singh 3 years, 5 months ago

Centre

0Thank You

Disha Mahintamani 3 years, 5 months ago

The needle is present in 2f =50cm So, 2f= 50 So,f=25 cm , f=25/100=0.25 Now, P=1/f P=1/0.25 P= +4D

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ANSWER

Write about mechanism of excretion with figure of nephron

Posted by Aanchal Rajbhar 3 years, 5 months ago

CBSE > Class 10 > Science

1 answers

Nargish Sekh 3 years, 5 months ago

Nephron is the filtration unit of kidney. It consist of a tubule which connected with a collecting duct at one end and a cup shaped structure at the another end. This filtrate contains glucose, amino acids, urea, uric acid.... (Diagram is on the book)

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ANSWER

Definition of ch 7

Posted by Sumedha Kamble 3 years, 5 months ago

CBSE > Class 10 > Science

0 answers

ANSWER

A concave lens has focal length of 15 CM at what distance should the object from the lens so that it forms an image at 10 cm from the lengths also find the magnification produced by the lens

Posted by Kashish Badgujjar 3 years, 5 months ago

CBSE > Class 10 > Science

3 answers

Madhu Singh 3 years, 5 months ago

10 cm

1Thank You

Aryan Kumar 3 years, 5 months ago

10cm is the answer

1Thank You

Kashish Badgujjar 3 years, 5 months ago

'10 cm from the lens'

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ANSWER

What is the sine angle i or sine angle r in refraction 2nd laws in 10th ch physics

Posted by Chhavi Jain 3 years, 5 months ago

CBSE > Class 10 > Science

5 answers

Manish Tripathi 3 years, 4 months ago

The ratio of sine of angle of incidence to the sine of angle of refraction for light of given colour is constant for a given pair of media

1Thank You

Mohd Affan Affan 3 years, 5 months ago

Snell law of refraction

0Thank You

Parneet Kaur 3 years, 5 months ago

The ratio of them are constant

0Thank You

Ashu Yadav 3 years, 5 months ago

Law of refraction

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Harshvivek Lakhera 3 years, 5 months ago

This is law of refraction:- The ratio of sin angle of <i to sin <r is constant. This is also known as Snell law.

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ANSWER

what are chromosomesome?

Posted by Rahul Abhijith 3 years, 5 months ago

CBSE > Class 10 > Science

3 answers

Aryan Nagar 3 years, 5 months ago

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Dhanraj Kumar Trivedi 3 years, 5 months ago

A gene which helps to identify the female or male

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Rishabh Sharma 3 years, 5 months ago

A generic material which differentiate male and female

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ANSWER

Describe an activity to show "Hydrotropism" in plants.

Posted by Ranjeet Kaur 3 years, 5 months ago

CBSE > Class 10 > Science

2 answers

Ashu Yadav 3 years, 4 months ago

That glass . This shows hydrotropism

0Thank You

Ashu Yadav 3 years, 4 months ago

Take a potted plant in a moisto and take a potted plant in an another port which contain a glass of water in it you will observed that in word soil the rules of that plant will they are in all the directions where as in another part you will observed at the rules of the plants will move toward

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ANSWER

Hey friends, anyone can provide me ncert exemplar of all subjects

Posted by Deepak Keshari 3 years, 5 months ago

CBSE > Class 10 > Science

0 answers

ANSWER

What is H+ ions

Posted by Aayush Kumar 3 years, 5 months ago

CBSE > Class 10 > Science

5 answers

Riya Kashyap 3 years, 5 months ago

H+ ions is symbol of hydrogen ions It release when acid react with water

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Rk Hindustani 3 years, 5 months ago

H+ ions are formed due to loss of electron by Hydrogen atom. Since, H- atom has a proton and an electron only, after loosing the only electron it remains a proton only. So H+ ion is basically a proton.

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Deepak Keshari 3 years, 5 months ago

H+ ions means releasing of hydrogen ion This is occur when acid react with aqueous solution

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Raj Vardhan Singh 3 years, 5 months ago

When concentrated HCL is added into water it it formed H plus and cl- ion H plus iron is also conduct electricity

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Anshita Pundil 3 years, 5 months ago

5Thank You

ANSWER

How to ***

Posted by Divyanshu Gupta 3 years, 5 months ago

CBSE > Class 10 > Science

1 answers

Rishabh Sharma 3 years, 5 months ago

That can be made by ________________________________

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ANSWER

Plz check q1 of ncert exemplar light,how answer is 4

Posted by Abhilash Kumar 3 years, 5 months ago

CBSE > Class 10 > Science

0 answers

ANSWER

In light chapter,ncert exemplar 6 ,it is clear that light moves away from normal so b is denser,and answer is more than 1,but answer given in this app is less than 1,plz clarify

Posted by Abhilash Kumar 3 years, 5 months ago

CBSE > Class 10 > Science

1 answers

Abhilash Kumar 3 years, 5 months ago

Sorry ,it is given away from normal ,but it looks towards normal from A to B

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ANSWER

What is feedback mechanism give an example.Draw flow chart of negative feedback mechanism

Posted by Pavan Pranav 3 years, 5 months ago

CBSE > Class 10 > Science

0 answers

ANSWER

I want to ask that we know that toothpaste are basic in Nature and we also know that base are bitter in taste then why don't we feel bitter taste of toothpaste

Posted by Amresh Kumar Singh 3 years, 5 months ago

CBSE > Class 10 > Science

3 answers

Deepak Keshari 3 years, 5 months ago

Toothpaste is not a strong base .It is weak in nature and their is many other natural & chemical ingredients are present in toothpaste. If toothpaste is strong in nature then it will burn our skin internally & externally.

1Thank You

Vaibhav Pokhriyal 3 years, 5 months ago

Because when we do brush the chemical reaction take place in which acid + base = salt + hydrogen

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Monik Kumar 3 years, 5 months ago

Because some other chemicals are also added in toothpaste that changes it's taste

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ANSWER

Arobic and an arobic

Posted by Kundan Sharma 3 years, 5 months ago

CBSE > Class 10 > Science

2 answers

Rishabh Sharma 3 years, 5 months ago

In Both reaction carbohydrates decomposed in pyruvate after then its depends reaction taking place in presence of oxygen or absence of oxygen in in presence of oxygen then it converted into 38 ATP (adenoine triphosphate)

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Raj Vardhan Singh 3 years, 5 months ago

Aerobic respiration take place in presence of oxygen This type of respiration take place in human beings The site of aerobic respiration is mitochondria It produce 38 ATP molecules ATP are the molecules that used to give energy our body Anaerobic respiration take place in absence of oxygen This type of respiration take place in Yeast and the muscles of body When this respiration take place in muscles it produce lactic acid which cause muscle cramps This respiration produce only two molecules of ATP which are very low energy content

1Thank You

ANSWER

What happens when sodium hydrogen carbonate is strongly heated🙂

Posted by Pari Singh 3 years, 5 months ago

CBSE > Class 10 > Science