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when will cbse release the dates of 12th class examination 2018

Posted by Anshul Sharma 7 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Ayushi Priya 7 years, 11 months ago

Expected today cbse release the datesheet of class 12

ANSWER

How is polarized light obtained by scattering of light

Posted by Rani Rani 7 years, 11 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Does the magnifying power of a microscope depend on the colour of the light used? Justify

Posted by Surbhi Maindola 7 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Nitin Murali 5 years ago

Yes it does.. Resolving power is proportional to wavelength.. Refer to wave optics chapter...

ANSWER

when the practial exam of 12 class will held

Posted by Nitika Thakur 7 years, 11 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

What is galvanometer

Posted by Kaif Sharukh 7 years, 11 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Can you suggest me please the numerical going to ask in exam is as previous trend or any change in trend will going to happen It's my humble request to you

Posted by Raju Jha 7 years, 11 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

In amplitude modulated wave 100% modulation what fraction of the total transmitted power is carried by side band

Posted by Divya Katiyar 7 years, 11 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

What is percentage of amplitude modulated wave power is carried by side band for m=1

Posted by Divya Katiyar 7 years, 11 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

When will the date sheet of 12 class will be announced

Posted by Abhishek Biswal 7 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Salman Arora 7 years, 11 months ago

10 jan

ANSWER

Find an expression for quantised energy of an electron in an hydrogen atom.

Posted by Sonu Basumatary 7 years, 11 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Ziner diode

Posted by Sanjana Mukati 7 years, 11 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

When an electron falls from a higher energy level to a lower energy level, the difference in the energies appears in form of electromagnetic radiation. Why cannot it be emitted as other forms of energy?

Posted by Vineet Kumar 7 years, 11 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Which sample paper is best for preparation of 12 board exam

Posted by Ranjot Singh 7 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Kritika Garg 7 years, 11 months ago

i succeed

ANSWER

If eye defects are in syllabus

Posted by Rachit Goyal 7 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Ruhi Ahuja 7 years, 11 months ago

no they are not

ANSWER

Binding energy graph

Posted by Mamta Bora 7 years, 11 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Name the phenomena which shows the quantum nature of em radiation

Posted by Yukta Khurana 7 years, 11 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Date sheet

Posted by Rock Rana 7 years, 11 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Why two electric lines of cannot intersect

Posted by Mishra Mishra 7 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Yukta Khurana 7 years, 11 months ago

Because it gives two directions of electric field which is not possible

ANSWER

The sequence of band marked on a carbon resistor is yellow red green and gold. What is its resistance?

Posted by Sonali Das 7 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Salman Arora 7 years, 11 months ago

(42×100000)±5%

ANSWER

Bending of light around an obstacle is due to

Posted by Aditya Raj 7 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Nitika Dogra 7 years, 11 months ago

Diffraction of light

ANSWER

What is marking schedule in physics with chapter wise

Posted by Suraj Negi 7 years, 11 months ago

CBSE > Class 12 > Physics

3 answers

Suraj Negi 7 years, 11 months ago

Thanks Anjali ji

Shruti Mangal 7 years, 11 months ago

What about semi conductor

Anjali Sharma 7 years, 11 months ago

Electrostatics 8 marks, current electricity 7 marks, magnetic effect of current and magnetism 8 marks, electromagnetic induction and alternating current 8 marks, electromagnetic waves 3 marks, optics 14 marks, dual nature of matter 4 marks, atoms and nuclei 6 marks, electronic devices 7 marks, communication system 5 marks

ANSWER

A long charged cylinder of linear charge density is surrounded by a hollow coaxial conducting cylinder of another linear charge density using gauss theorem obtain expression for the electric field at a point (a) in the space between the cylinders ,(b) outside the larger cylinder..??

Posted by Monal Panjwani 7 years, 11 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Explain Sign convention in Ampere's circuital law How we decide magnetic field is positive or negative for a given loop

Posted by Shruti Mangal 7 years, 11 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Derive magnetic field due to straight current carrying conductor and current carrying loop

Posted by Ayushi Priya 7 years, 11 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

What is eddy currend

Posted by Abhishek Kumar 7 years, 11 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Prove that current forward 90degree in capacitor and backward 90 degree in inductor?

Posted by Nayanshi Sankhwar 7 years, 11 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Which oil are used in transformer and why

Posted by Vijay Patidar 7 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Nitin Murali 7 years, 11 months ago

Acts as lubricant

ANSWER

Define decay constant?

Posted by Virender Brar 7 years, 11 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

What are the important topics in semiconductor devices

Posted by Sanjana Mukati 7 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Mayank Sharma 7 years, 11 months ago

P type semiconductor & N type semiconductor

ANSWER

What is cyclotron ? Explain in simple way

Posted by Sanjana Mukati 7 years, 11 months ago

CBSE > Class 12 > Physics

2 answers

Sahiba Bhayana 7 years, 11 months ago

It is a device used to accelerate charged particles like protons, deutrons α- particles axle truck to very high energy. It is also known as Lawrence and living stone device.

Mayank Sharma 7 years, 11 months ago

It is an apparatus which can give a large velocity to charged particles . Due to their large velocity,they possess high energy.

ANSWER

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