CBSE > Class 12 > Physics | CBSE Board | Homework Help

Ask questions which are clear, concise and easy to understand.

Ask Question

Derivation of Coulomb's law in vector form

Posted by Arkajeet Ray 7 years, 11 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Can you please give me details about Universal Reflector????

Posted by Aastha Bansal 7 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Sakshi Rai 7 years, 11 months ago

Reflector mtb...kisi v cheej ko reflect kerna...like sun is universal reflector which reflect light on the earth..

1Thank You

ANSWER

A square 100 cm of side 20cm carry out 1ampere

Posted by Shristi Uike 7 years, 11 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

State two characteristic properties distinguishing the behaviour of paramagnetic and diamagnetic material

Posted by Rahul Raj 7 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Sakshi Rai 7 years, 11 months ago

Dia.-no unpaired electron...para- present unpaired electron...diamagnetic substances are not attract in magnetic field while paramagnetic substance high attractive..

1Thank You

ANSWER

What is Bohr magneton with proving

Posted by Gaurav Sahu 7 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Prafull Suryawanshi 7 years, 11 months ago

Phys mai pad na

1Thank You

ANSWER

Practical reading of internal resistance of cell

Posted by Rikky Tomar 7 years, 11 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Name the dielectric molecule have (i) zero (ii) non zero dipole moment

Posted by Abc Xyz 7 years, 11 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Explain Galvnometer

Posted by Siddhant Lodhi 7 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Sanjay Kumar 7 years, 11 months ago

Galvanometer is a device used to measure electric current .it also show the direction of electric current

1Thank You

ANSWER

How is the speed of EM waves in vacuum determined by the electric and magnetic field

Posted by Disha Pal 7 years, 11 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Tabular difference between metals, non metals, and semi metals

Posted by Amandeep Singh Khalsa 7 years, 11 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

In a transistor, doping level in base is increased slightly. How will it affect. (i) collector current, and (ii) base current?

Posted by Rainish Dhiman 7 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Shruti Jain 7 years, 11 months ago

Collector current decrease slightly and base current increases slightly

1Thank You

ANSWER

Why is the whole mass of an atom is less than the mass of all electrons ,protons and neutrons respectively ?

Posted by Abc Xyz 7 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Shruti Jain 7 years, 11 months ago

Beacause of mass defect When lrotons and neutrons combine to form a nuclei their some mass gets evolvedas binding energy..hence the mass of an atom is less than that of individual proton neutrons and electrons

2Thank You

ANSWER

Does interference phenomenon reveal the transverse nature of light

Posted by Aditi Jamwal 7 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Ashish Singh 7 years, 11 months ago

Yes.

0Thank You

ANSWER

can anyone tell me about the datesheet. Is it released?

Posted by Ritu Gupta 7 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Anonymous Hmm 7 years, 11 months ago

15 ko release hogi

5Thank You

ANSWER

Sketch the graph showing the variation of stopping potential with frequency

Posted by Avinash Gupta 7 years, 11 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Does the charge given to a mettalic sphere depends on whether it is hollow or solid give reason...

Posted by Disha Pal 7 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Nancy Som 7 years, 11 months ago

No.Bcoz charge distribution is surface phenomenon.

1Thank You

ANSWER

Why the attractive force create between mass of heavy planet

Posted by Sachin Kumar 7 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Ashish Singh 7 years, 11 months ago

Because distance is less than 1 Fermi.

1Thank You

ANSWER

datesheet of 12 class realsed or not???

Posted by Nitika Thakur 7 years, 11 months ago

CBSE > Class 12 > Physics

3 answers

Aditya Raj 7 years, 11 months ago

On 9 march

0Thank You

Aditya Raj 7 years, 11 months ago

Released

0Thank You

Divya Sen 7 years, 11 months ago

Not yet but it is said that may be in coming one or two days it will be announced, may be tommorrow also!!

0Thank You

ANSWER

What is logic gate...and its...use....?????.....

Posted by Sharma Saabh 7 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Sakshi Rai 7 years, 11 months ago

Logic gate analoge signals ko digital signal.m convert karte h....

1Thank You

ANSWER

Why blue colour is predominate in a clear sky?

Posted by Yash Sharma 7 years, 11 months ago

CBSE > Class 12 > Physics

2 answers

Sanjay Kumar 7 years, 11 months ago

Scattering is inversely proportional to lambda to the power 4. as the wavelength decreases scattering increases . And blue colour has less wavelength so it scatter more and spread over the sky and Sky appears blue.

2Thank You

Padmini Soni 7 years, 11 months ago

Because of scattering of light as it has shorter wavelength and larger refractive index

4Thank You

ANSWER

Force is more in vaccum or in space

Posted by Ankit Sharma 7 years, 11 months ago

CBSE > Class 12 > Physics