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How temperature varies with colour

Posted by Chesta Jain 7 years, 1 month ago

CBSE > Class 12 > Physics

0 answers

ANSWER

A p-n photodiode is fabricated from a semiconductor with band gap of 2.8eV. can it detect a wavelength of 6000nm?

Posted by Shrey Shekhar 7 years, 1 month ago

CBSE > Class 12 > Physics

0 answers

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Please name all the derivation in electrostatics

Posted by Shikhar Pundhir 7 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Priyanka Malik 7 years, 1 month ago

Expression for clectric field due to axial line.due to equitorial line....electic potential due to axial line .. due to editorial line...torque acting. ..... AND SO MANY

1Thank You

ANSWER

Electric potential at any general point due to a dipole

Posted by Shikhar Pundhir 7 years, 1 month ago

CBSE > Class 12 > Physics

0 answers

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What is minimum deviation

Posted by Gaurish Bhandari 7 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Ritik Kushwaha 7 years, 1 month ago

When we uncrease the angle of incedence angle of deviation decrases gradually at the point come when angle of deviation equal to angle of incedence.

2Thank You

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What is meant by optoelectronic junction device

Posted by Jayaasrii?? Jayaasrii 7 years, 1 month ago

CBSE > Class 12 > Physics

0 answers

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Why should a ground wire be connected to the metallic support rod for a television antenna

Posted by Neha Verma 7 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Aditya Kumar Mishra 7 years, 1 month ago

it is mainly for earthing

1Thank You

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What is drift velocity ? Pta h kese ko ...nhi btaa do...lgta toh ni kese ko pta hoga..

Posted by Neeraj Kathayat 7 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Neha Verma 7 years, 1 month ago

Which velocity comes after applying external voltage in any conducter is called drift velocity

5Thank You

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Can anyone provide me all the important questions of finding resistance in series and parallel combinations..??

Posted by Chesta Jain 7 years, 1 month ago

CBSE > Class 12 > Physics

0 answers

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Derivation of SI unit of mobility of charge

Posted by Chesta Jain 7 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Dhruv G 7 years, 1 month ago

Mobility μ➡Drift velocity/Electeic field➡vd/E➡eEτ/mE➡Fτ/mE➡aτ/E➡➡➡Interms of units➡➡➡a=acceleration=m(s^2), τ=relaxation time=s, E=Electric field=N/C➡➡➡μ=msC/(s^2)N= mC/Ns is the required SI Unit.............{for other unit: multiply and divide by m in mC/Ns.....i.e. (m^2)C/Nms➡(m^2)/Vs (since V=Nm/C) }?

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Explain different methods of electron emission

Posted by Anmoldeep Kaur 7 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Sukhbir Singh 7 years, 1 month ago

Photoelectric emission,thermionic emission

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focal length of convex lens is positive or negative??

Posted by Aditya Kumar Mishra 5 years, 8 months ago

CBSE > Class 12 > Physics

2 answers

Sukhbir Singh 7 years, 1 month ago

Positive

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Mansi Dwivedi 7 years, 1 month ago

positive

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Is dispersion without deviation and deviation without dispersion in CBSE syllabus 2018-19 class 12 ?

Posted by Manmeet Marwaha 7 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Mahipal Choudhary 7 years, 1 month ago

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Is 'intergerence due to thin films' is in CBSE board syllabus now also?? Please tell if u know.

Posted by Rajat Dhull 7 years, 1 month ago

CBSE > Class 12 > Physics

2 answers

Abhay Rathi 7 years, 1 month ago

No! The topic has been removed from cbse board syllabus

2Thank You

Annesha Gupta 7 years, 1 month ago

It isn't in the syllabus....as far as I know

1Thank You

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What do you mean by interference, diffraction, and polymerisation?

Posted by P S 7 years, 1 month ago

CBSE > Class 12 > Physics

0 answers

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GIVE REASON 1 lighter element are better moderator for a nuclear reactor than heavier element 2 in a natural uranium reactor heavy water is preferred moderator over ordinary water

Posted by Sweet Girl 7 years, 1 month ago

CBSE > Class 12 > Physics

0 answers

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An object 3cm height is placed at a distance 10cm from the pole of a concave mirror of focal lenght 15cm. Find. The position nature & size of the image?

Posted by Osama Malik 7 years, 1 month ago

CBSE > Class 12 > Physics

0 answers

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Is 'The Defects of visions' in CBSE syllabus class 12?

Posted by Manmeet Marwaha 7 years, 1 month ago

CBSE > Class 12 > Physics

3 answers

Vraj Shah 7 years, 1 month ago

Yes but it is not much imp

0Thank You

Mahipal Choudhary 7 years, 1 month ago

2Thank You

Anchal Bhandari 7 years, 1 month ago

yes it is

1Thank You

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Is Raman effect in CBSE syallabus 2018-19?

Posted by Manmeet Marwaha 7 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Vraj Shah 7 years, 1 month ago

Yes

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An aeroplane has to go from a point A to another point B 500km away duue to 30 degree east of north. A wind is blowing due north at a spees of 20m/s . A) find the direction in which pilot should head the plane to reach the point B. B) time taken

Posted by Harahaa Ammu 7 years, 1 month ago

CBSE > Class 12 > Physics

0 answers

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what is space wave propagation which frequency range is suitable for sky wave propagation and why over which range of frequencies can communication through free space using radio waves takes place

Posted by Anikesh Chowdhury 7 years, 1 month ago

CBSE > Class 12 > Physics

0 answers

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What is d.c.current gain?

Posted by Deepak Panigrahy 7 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Aditya Kumar Mishra 7 years, 1 month ago

d.c. current is direct current which remain constant with time

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How many positive and negative charge in one cup of water.

Posted by Neha Verma 7 years, 1 month ago

CBSE > Class 12 > Physics

3 answers

Abhay Singh Tomar 7 years, 1 month ago

U can get its answer in sl arora as it is example 4 of ch 1

1Thank You

Abdul Rafique 7 years, 1 month ago

Here I can't show you full explanation so soryy this is your answer only

1Thank You

Abdul Rafique 7 years, 1 month ago

±(1.388×10^7)

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Show that waber = volt xsec

Posted by Onamika Ray 7 years, 1 month ago

CBSE > Class 12 > Physics

0 answers

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When class 12 board exams will begin

Posted by Mahipal Choudhary 7 years, 1 month ago

CBSE > Class 12 > Physics

2 answers

Rupali Agrawal 7 years, 1 month ago

Datesheet may be revealed in january

2Thank You

Arnav Singh 7 years, 1 month ago

Mid February

2Thank You

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A ray of light is incident at an angle of 60° on a horizontal plane mirror. Through what angle should the mirror be tilted to make the reflected ray horizontal? Explain also.

Posted by Dhruv G 7 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Adesh Kumar Mishra 7 years, 1 month ago

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when mirror is rotated by an angle theta,reflected light ray divert through 2 times theta.in order to make reflected light ray horizontal it has to move by 30 degrees for which mirror has to be rotated by 15 degrees.

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How much can we score if we study last 10 years board papers fully

Posted by Mano Mano 7 years, 1 month ago

CBSE > Class 12 > Physics