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What is atomic mass and no.

Posted by Shaurya Khonde 4 years, 2 months ago

1 answers

Fayaz Ahmad 4 years, 2 months ago

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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ANSWER

Why people suggested not sleep down the tree

Posted by Dimanshu Yadav 4 years, 2 months ago

CBSE > Class 10 > Science

4 answers

Shaurya Khonde 4 years, 2 months 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.

1Thank You

Gaurav Choudhary 4 years, 2 months ago

Because during night plants also release CO2 and take in O2

2Thank You

Shweta Sahu 4 years, 2 months ago

Bcoz it 's process is opposite

2Thank You

Dimanshu Yadav 4 years, 2 months 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, 2 months ago

CBSE > Class 10 > Science

1 answers

Mayank Jakhar 4 years, 1 month 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, 2 months ago

CBSE > Class 10 > Science

0 answers

ANSWER

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

Posted by Janhavi ★ 4 years, 2 months ago

CBSE > Class 10 > Science

3 answers

Gagan M 4 years, 1 month 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, 2 months ago

Only daughter, why not son?

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Dimanshu Yadav 4 years, 2 months 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.

1Thank You

ANSWER

C4H4 is alkanes or alkynes

Posted by Priya . 4 years, 2 months ago

CBSE > Class 10 > Science

2 answers

Gagan M 4 years, 1 month ago

C4H4 doesn't exist bro

0Thank You

Anushka Tyagi 4 years, 2 months 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, 2 months ago

CBSE > Class 10 > Science

4 answers

Muskan Varshney 4 years, 2 months ago

4.8 ohm

1Thank You

Mansi Shahi 4 years, 2 months ago

48000 ohm

1Thank You

Kriti Vishwakarma Kriti Vishwakarma 4 years, 2 months 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

1Thank You

Musical Touch 4 years, 2 months ago

My question science

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Why do spores remain viable during unfavorable condition?

Posted by Mahithaa Mylesh 4 years, 2 months ago

CBSE > Class 10 > Science

0 answers

ANSWER

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

Posted by Sneha Sneha 4 years, 2 months ago

CBSE > Class 10 > Science

3 answers

Shweta Sahu 4 years, 2 months ago

Bcoz of variation

1Thank You

Janhavi ★ 4 years, 2 months ago

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

1Thank You

Atharv Mali 4 years, 2 months ago

Variation

1Thank You

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How will you justify that F resembles with 35br

Posted by Nisha Ashta 4 years, 2 months 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, 2 months ago

CBSE > Class 10 > Science

1 answers

Atharv Mali 4 years, 2 months 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, 2 months ago

CBSE > Class 10 > Science

4 answers

Mayank Jakhar 4 years, 1 month 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.

0Thank You

Utkarsh Sharma 4 years, 2 months ago

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

1Thank You

Deepak Shrivastav 4 years, 2 months ago

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

0Thank You

Richa Chauhan 4 years, 2 months ago

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

1Thank You

ANSWER

What is ohm?

Posted by Aayush Thakkar 4 years, 2 months ago

CBSE > Class 10 > Science

2 answers

Bilash Sarkar 4 years, 2 months ago

Ohm is the SI unit of resistance

2Thank You

Atharv Mali 4 years, 2 months ago

Ohm is the unit used to represent resistance.

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ANSWER

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

Posted by Piyush Kumar 4 years, 2 months ago

CBSE > Class 10 > Science

1 answers

Atharv Mali 4 years, 2 months 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, 2 months ago

CBSE > Class 10 > Science

3 answers

Gagan M 4 years, 1 month ago

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

0Thank You

Muskan Varshney 4 years, 2 months ago

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

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Atharv Mali 4 years, 2 months 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, 2 months ago

CBSE > Class 10 > Science

1 answers

Rhythem Maheshwari 4 years, 2 months ago

2Thank You

ANSWER

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

Posted by Mannu Singh 4 years, 2 months ago

CBSE > Class 10 > Science

1 answers

Rhythem Maheshwari 4 years, 2 months ago

Chal bhaag

3Thank You

ANSWER

What is atomic mass of oxygen?

Posted by Prathvi Varshney 4 years, 2 months ago

CBSE > Class 10 > Science

5 answers

Badal Bhati 4 years, 2 months ago

16 is the atomic mass of oxygen

0Thank You

Jayanti Saren 4 years, 2 months ago

16 amu

0Thank You

Vinuthna Vinu. 4 years, 2 months ago

16u

0Thank You

Bhogadi Krishna Jaydev 4 years, 2 months ago

16amu

0Thank You

Ayush Anand 4 years, 2 months ago

16u

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ANSWER

Derive Ohm's Law ?

Posted by Vikashini M 4 years, 2 months ago

CBSE > Class 10 > Science

2 answers

Fayaz Ahmad 4 years, 2 months 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)

0Thank You

Deepak Panda 4 years, 2 months 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, 2 months ago

CBSE > Class 10 > Science

1 answers

Nisha Ashta 4 years, 2 months 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, 2 months ago

CBSE > Class 10 > Science

0 answers

ANSWER

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

Posted by Aakanksha Gupta 4 years, 2 months ago

CBSE > Class 10 > Science

2 answers

Janhavi ★ 4 years, 2 months ago

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

0Thank You

Lucky Kumar 4 years, 2 months ago

what are function of the stomata

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ANSWER

Name two a that are organism vegetative reproduction propagation?

Posted by Shevanti Valvi 4 years, 2 months ago

CBSE > Class 10 > Science

2 answers

Muskan Varshney 4 years, 2 months ago

Banana and Jaismen

0Thank You

Shrutee Kumari 4 years, 2 months ago

Potato , rose and orange

1Thank You

ANSWER

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

Posted by Aayush Thakkar 4 years, 2 months ago

CBSE > Class 10 > Science

1 answers

Janhavi ★ 4 years, 2 months 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, 2 months ago

CBSE > Class 10 > Science

0 answers

ANSWER

What is the cause of tyndall effect

Posted by Tanmay Srivastava 4 years, 2 months ago

CBSE > Class 10 > Science

2 answers

Shrutee Kumari 4 years, 2 months ago

Colloidal particles scatter light

1Thank You

Tanmay Srivastava 4 years, 2 months 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, 2 months ago

CBSE > Class 10 > Science

1 answers

Akshay Reddy 4 years, 2 months ago

Due to ***

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what is the charge and write the five properties of charge

Posted by Mayank Patel 4 years, 2 months ago

CBSE > Class 10 > Science

0 answers

ANSWER

How many covalent bonds are present in C3H

Posted by Sourabh Narsale 4 years, 2 months ago

CBSE > Class 10 > Science

1 answers

Ankit Kumar 4 years, 2 months ago

How many covalent bonds are present in c3h

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Tissue culture????

Posted by Sanket Arjun 4 years, 2 months ago

CBSE > Class 10 > Science

3 answers

Janhavi ★ 4 years, 2 months ago

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

0Thank You

Atharv Mali 4 years, 2 months 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, 2 months ago

Tissue culture ??

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