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What is atomic mass and no.

Posted by Shaurya Khonde 4 years ago

1 answers

The total number of protons is present in element is called its atomic number while the number of protons and neutrons are present in the element is called its atomic mass..

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Why people suggested not sleep down the tree

Posted by Dimanshu Yadav 4 years ago

CBSE > Class 10 > Science

4 answers

Shaurya Khonde 4 years ago

It is said that we should avoid sleeping under the tree at night, since plants carry out respiration at night and give out carbon dioxide, which is harmful for us. During the day, carbon dioxide is used by the plants for photosynthesis and hence no carbon dioxide is released.

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Gaurav Choudhary 4 years ago

Because during night plants also release CO2 and take in O2

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Shweta Sahu 4 years ago

Bcoz it 's process is opposite

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Dimanshu Yadav 4 years ago

Because Ghost? is on the tree

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Describe joules law of heating effect .with the help of example .

Posted by Dimanshu Yadav 4 years ago

CBSE > Class 10 > Science

1 answers

Mayank Jakhar 4 years ago

This law gives the amount of heat produced whose resistance is 'R' and 'I' current flow through it.

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What are positive and negative identities. Explain

Posted by Gurleen Kaur 4 years ago

CBSE > Class 10 > Science

0 answers

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Why do we call new asexual offsprings as - daughter individuals?

Posted by Janhavi ★ 4 years ago

CBSE > Class 10 > Science

3 answers

Gagan M 4 years ago

Son can't bear young ones on their own, daughters have to bear the growing child. The same thing happens in asexual reproduction

1Thank You

Janhavi ★ 4 years ago

Only daughter, why not son?

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Dimanshu Yadav 4 years ago

In budding, organisms reproduce by having new individuals split off from existing ones, which results in genetically identical parent and daughter organisms. The bud may stay attached or break free from the parent.

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C4H4 is alkanes or alkynes

Posted by Priya . 4 years ago

CBSE > Class 10 > Science

2 answers

Gagan M 4 years ago

C4H4 doesn't exist bro

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Anushka Tyagi 4 years ago

CH4, C2H6, and C3H8 are alkanes as they have each carbon bonded to four other atoms through single covalent bonds and follow general formula CnH2n+

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When 12V is connected across an unknown resistor.there is current of 2.5 ma in the circuit.find the value of the resistance of the resistor

Posted by Parth Doshi 4 years ago

CBSE > Class 10 > Science

4 answers

Muskan Varshney 4 years ago

4.8 ohm

1Thank You

Mansi Shahi 4 years ago

48000 ohm

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Kriti Vishwakarma Kriti Vishwakarma 4 years ago

v=IR = =2.5 ma=2.5×10 ^-3 =12/2.5×10^-3 =120/25×10^-3 =4.8×10^3 =in kg=4.8^1000/1000 =4.8k ohm

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Musical Touch 4 years ago

My question science

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Why do spores remain viable during unfavorable condition?

Posted by Mahithaa Mylesh 4 years ago

CBSE > Class 10 > Science

0 answers

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Some people have blue eyes and some have brown eyes.why this is the case ?

Posted by Sneha Sneha 4 years ago

CBSE > Class 10 > Science

3 answers

Shweta Sahu 4 years ago

Bcoz of variation

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Janhavi ★ 4 years ago

Due to variations cause in sexual reproduction during crossing over recombination of prophase - l of pachytene.

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Atharv Mali 4 years ago

Variation

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How will you justify that F resembles with 35br

Posted by Nisha Ashta 4 years ago

CBSE > Class 10 > Science

0 answers

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Show how would you join three resistors, each of resistance is 9 ohm so that the equivalent resistance of the combination is 13.5 ohm and 6 ohm

Posted by Richa Chauhan 4 years ago

CBSE > Class 10 > Science

1 answers

Atharv Mali 4 years ago

2 resistors in parallel : 1/9 + 1/9 = 1/R = 1/R = 2/9 = R = 9/2 Add the resistor that is in series with this parallel combination : = 9/2 + 9 = 27/2 = 13.5 ohms

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Define one volt electric potential

Posted by Aayush Thakkar 4 years ago

CBSE > Class 10 > Science

4 answers

Mayank Jakhar 4 years ago

If one joule charge requires to move one cuolomb charge from one point to another in an electric field them the potential difference between these two points is equal to one volt.

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Utkarsh Sharma 4 years ago

Work done to carry one 1c of charge is equal to 1 volt

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Deepak Shrivastav 4 years ago

It is the si unit of work done 1 volt that flow in a conducer

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Richa Chauhan 4 years ago

1 volt is defined as the unit work done in flowing unit charge in circuit

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What is ohm?

Posted by Aayush Thakkar 4 years ago

CBSE > Class 10 > Science

2 answers

Bilash Sarkar 4 years ago

Ohm is the SI unit of resistance

2Thank You

Atharv Mali 4 years ago

Ohm is the unit used to represent resistance.

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An aldehyde as well as ketone can be represented by the same molecular formula C3H6O write their structure

Posted by Piyush Kumar 4 years ago

CBSE > Class 10 > Science

1 answers

Atharv Mali 4 years ago

Structure for aldehyde : R - CHO. Structure for ketone : R -CO- R

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What are hydrocarbons. Give two examples.

Posted by Riya Yadav 4 years ago

CBSE > Class 10 > Science

3 answers

Gagan M 4 years ago

Hydrocarbon is a compound made of carbon and hydrogen molecules. E.g. CH4,C2H6

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Muskan Varshney 4 years ago

Hydrocarbon is the only hydrogen and carbon elements example CH4 and C3H8

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Atharv Mali 4 years ago

Hydrocarbons are long chain of hydrogen and carbons. Ex: C2H6, C5H12

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How many isomers does ethene have?

Posted by Ayush Anand 4 years ago

CBSE > Class 10 > Science

1 answers

Rhythem Maheshwari 4 years ago

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Please give us notes of chapter which is in our term 2 syllabus

Posted by Mannu Singh 4 years ago

CBSE > Class 10 > Science

1 answers

Rhythem Maheshwari 4 years ago

Chal bhaag

3Thank You

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What is atomic mass of oxygen?

Posted by Prathvi Varshney 4 years ago

CBSE > Class 10 > Science

5 answers

Badal Bhati 4 years ago

16 is the atomic mass of oxygen

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Jayanti Saren 4 years ago

16 amu

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Vinuthna Vinu. 4 years ago

16u

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Bhogadi Krishna Jaydev 4 years ago

16amu

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Ayush Anand 4 years ago

16u

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Derive Ohm's Law ?

Posted by Vikashini M 4 years ago

CBSE > Class 10 > Science

2 answers

Fayaz Ahmad 4 years ago

The potential difference in a conductor is directly proportional to the flow of electric current. V is directly proportional to I when we remove the sign of proportionality then we get.. V= IR ( here R is the resistance of a conductor)

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Deepak Panda 4 years ago

Ohm’s law states ‘The current flowing through a conductor is directly proportional to the potential difference V across its ends, provided the temperature and physical conditions of the conductor remain the same’. If I is the current flowing through a conductor and V is the potential difference (or voltage) across its ends, the according to Ohm's law: begin mathsize 14px style straight I proportional to straight V straight V over straight I equals constant equals straight R straight V equals IR end style begin mathsize 14px style straight V over straight R equals straight I end style 'R' is constant for a given metallic wire at a given temperature, and this constant is named resistance. It is the property of a conductor to resist the flow of charges through it. Its SI unit is ohm which is denoted as begin mathsize 14px style straight capital omega end style.

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Define Potential Difference ?

Posted by Vikashini M 4 years ago

CBSE > Class 10 > Science

1 answers

Nisha Ashta 4 years ago

Work done with per unit time that moves from one point to another

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Note of chapter carbon and it's compound term 2

Posted by Nidhi Singh 4 years ago

CBSE > Class 10 > Science

0 answers

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(a) On what rules inheritance is based (b) Is each trait influenced by both parental and maternal DNA ??

Posted by Aakanksha Gupta 4 years ago

CBSE > Class 10 > Science

2 answers

Janhavi ★ 4 years ago

Inheritance is based on molecular basis ,etc.No all traits influence by both parents.

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Lucky Kumar 4 years ago

what are function of the stomata

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Name two a that are organism vegetative reproduction propagation?

Posted by Shevanti Valvi 4 years ago

CBSE > Class 10 > Science

2 answers

Muskan Varshney 4 years ago

Banana and Jaismen

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Shrutee Kumari 4 years ago

Potato , rose and orange

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Is the extinction of dinosaur due to the development of the capable species. What is your opinion

Posted by Aayush Thakkar 4 years ago

CBSE > Class 10 > Science

1 answers

Janhavi ★ 4 years ago

Yes ,as change is the major rule of nature.

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Describe the structure of human sperm?

Posted by Shreya Thakur 4 years ago

CBSE > Class 10 > Science

0 answers

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What is the cause of tyndall effect

Posted by Tanmay Srivastava 4 years ago

CBSE > Class 10 > Science

2 answers

Shrutee Kumari 4 years ago

Colloidal particles scatter light

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Tanmay Srivastava 4 years ago

I know ?

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There are maximum prpgenies of tall heighted after a cross and only few are dwarf.what will be the genotype of both parents?

Posted by Sneha Sneha 4 years ago

CBSE > Class 10 > Science

1 answers

Akshay Reddy 4 years ago

Due to ***

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what is the charge and write the five properties of charge

Posted by Mayank Patel 4 years ago

CBSE > Class 10 > Science

0 answers

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How many covalent bonds are present in C3H

Posted by Sourabh Narsale 4 years ago

CBSE > Class 10 > Science

1 answers

Ankit Kumar 4 years ago

How many covalent bonds are present in c3h

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Tissue culture????

Posted by Sanket Arjun 4 years ago

CBSE > Class 10 > Science

3 answers

Janhavi ★ 4 years ago

Making a completely new plant asexually by a cell or tissue .

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Atharv Mali 4 years ago

Tissue culture also called micropropagation, in which cells or tissue is isolated form the growing tip of the plant called ' explant ' . The explant grows into a undifferentiated mass of cells called callus in proper culture medium. Callus is then transferred to a medium containg hormones for growth and differniciation, that develops into plantlet, plantlets are then transplanted into pot or soil to form mature plants.

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Ankit Kumar 4 years ago

Tissue culture ??

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